Blue Screen of Death Windows 11 and 10 Error Codes List [BSOD]

List of all BSOD or Blue Screen of Death Windows 10 and 11 Error Codes with explanation and bug check value.

Blue Screen of Death Windows 11 and 10 Error Codes List [BSOD]
 S.NOName ExplanationCode
1APC_INDEX_MISMATCHThis BSOD appears on exit from a system call and it is an outcome of internal error in kernel.0x00000001
2DEVICE_QUEUE_NOT_BUSYThis is an uncommon Blue screen error harmful to devices.0x00000002
3INVALID_AFFINITY_SETRare bugcheck and doesn’t appear commonly.0x00000003
4INVALID_DATA_ACCESS_TRAPAgain an occasionally occurring error that indicates an incorrect data access trap.0x00000004
5INVALID_PROCESS_ATTACH_ATTEMPTThis BSOD commonly appears when a driver requests the KeAttachProcess function and the thread is attached to a different process.0x00000005
6INVALID_PROCESS_DETACH_ATTEMPTThe BSOD appears after calling KeStackAttachProcess routine and afterward KeUnstackDetachProcess. The process is necessary for the driver’s implementation of callback function PLOAD_IMAGE_NOTIFY_ROUTINE.0x00000006
7INVALID_SOFTWARE_INTERRUPTInfrequent occurring bugcheck.0x00000007
8IRQL_NOT_DISPATCH_LEVELRare Blue Screen0x00000008
9IRQL_NOT_GREATER_OR_EQUAL“”0x00000009
10IRQL_NOT_LESS_OR_EQUALError message implies Windows or a kernel-mode driver accessed paged memory at an invalid address while at an IRQL.0x0000000A
11NO_EXCEPTION_HANDLING_SUPPORTRare bugcheck0x0000000B
12MAXIMUM_WAIT_OBJECTS_EXCEEDEDThis BSOD is the consequent of improper use of FsRtlCancellableWaitForMultipleObjects or KeWaitForMultipleObjects.0x0000000C
13MUTEX_LEVEL_NUMBER_VIOLATIONSeldom occurs0x0000000D
14NO_USER_MODE_CONTEXTAppears when a control returns from the initial thread procedure during starting a system thread0x0000000E
15SPIN_LOCK_ALREADY_OWNEDResult of a recursive request for a spin lock or comparable function.0x0000000F
16SPIN_LOCK_NOT_OWNEDOccurs occasionally0x00000010
17THREAD_NOT_MUTEX_OWNER“”0x00000011
18TRAP_CAUSE_UNKNOWNUnknown exception0x00000012
19EMPTY_THREAD_REAPER_LISTSporadically occurs0x00000013
20CREATE_DELETE_LOCK_NOT_LOCKEDRare bugcheck0x00000014
21LAST_CHANCE_CALLED_FROM_KMODE“”0x00000015
22CID_HANDLE_CREATION“”0x00000016
23CID_HANDLE_DELETION“”0x00000017
24REFERENCE_BY_POINTERConsequences of reference count of an object which is illegal for the present state of the object.0x00000018
25BAD_POOL_HEADERCorrupt pool header at the time of current request generates this issue.0x00000019
26MEMORY_MANAGEMENTDifferent flaws in memory management cause this BSOD.0x0000001A
27PFN_SHARE_COUNTDoesn’t occur in Windows 10 currently0x0000001B
28PFN_REFERENCE_COUNTAppears very infrequently.0x0000001C
29NO_SPIN_LOCK_AVAILABLE“”0x0000001D
30KMODE_EXCEPTION_NOT_HANDLEDFaulty Services or driver causes a kernel mode program to create an exception. Error handler fails to catch this exception.0x0000001E
31SHARED_RESOURCE_CONV_ERRORRare Blue Screen Error0x0000001F
32KERNEL_APC_PENDING_DURING_EXITBSoD occurs when an asynchronous procedure call was remaining in pending state when a thread exited.0x00000020
33QUOTA_UNDERFLOWThis Stop error appears after quota charges are mishandled by returning more quota. This occurs to a particular block that was previously charged.0x00000021
34FILE_SYSTEMInfrequent bugcheck0x00000022
35FAT_FILE_SYSTEMBSoD happens because of corruption in FAT file system mostly due to Bad sectors or blocks in disk.0x00000023
36NTFS_FILE_SYSTEMDriver file ntfs.sys messes that allow the system to write and read to NTFS drives generate this flaw.0x00000024
37NPFS_FILE_SYSTEMIssues in NPFM File System lead to this Blue Screen.0x00000025
38CDFS_FILE_SYSTEMCorruption in CDFS File System causes this stop error mostly because of Bad sector in disk.0x00000026
39RDR_FILE_SYSTEMDepletion of nonpaged pool memory leads to issues in SMB redirector file system that finally results in this error.0x00000027
40CORRUPT_ACCESS_TOKENSeldom occurring bugcheck0x00000028
41SECURITY_SYSTEM“”0x00000029
42INCONSISTENT_IRPInconsistent  I/O request packets are the main reason behind this issue.0x0000002A
43PANIC_STACK_SWITCHkernel-mode driver using more stack space is the prime cause of this stop code.0x0000002B
44PORT_DRIVER_INTERNALRare stop error0x0000002C
45SCSI_DISK_DRIVER_INTERNAL“”0x0000002D
46DATA_BUS_ERRORMainly occurs because of memory issues or configuration.0x0000002E
47INSTRUCTION_BUS_ERRORRare Stop code0x0000002F
48SET_OF_INVALID_CONTEXTStack pointer in a trap frame having an invalid value leads to this problem0x00000030
49PHASE0_INITIALIZATION_FAILEDIn this situation, System initialization fails at a very early stage.0x00000031
50PHASE1_INITIALIZATION_FAILED“”0x00000032
51UNEXPECTED_INITIALIZATION_CALLScanty bugcheck0x00000033
52CACHE_MANAGERDepletion of nonpaged pool memory causes issues with file system’s cache manager that ends up with this error.0x00000034
53NO_MORE_IRP_STACK_LOCATIONSThis BSOD appears due to IoCallDriver packet that has no more stack locations remnant in the packet.0x00000035
54DEVICE_REFERENCE_COUNT_NOT_ZERODriver tried to remove a device object still the reference count didn’t become 0.0x00000036
55FLOPPY_INTERNAL_ERRORInfrequent error0x00000037
56SERIAL_DRIVER_INTERNAL“”0x00000038
57SYSTEM_EXIT_OWNED_MUTEXThe worker routine returned back without freeing the mutex object that it owned.0x00000039
58SYSTEM_UNWIND_PREVIOUS_USERSeldom occurring error0x0000003A
59SYSTEM_SERVICE_EXCEPTIONAppears when executing code has an exception and thread system thread is under this value.0x0000003B
60INTERRUPT_UNWIND_ATTEMPTEDRare stop code0x0000003C
61INTERRUPT_EXCEPTION_NOT_HANDLED“”0x0000003D
62MULTIPROCESSOR_CONFIGURATION_NOT_SUPPORTEDSystem contains more than one processor, but they are not symmetric to each other.0x0000003E
63NO_MORE_SYSTEM_PTESPage table entries in fragmented state have been generated because of too many I/O actions.0x0000003F
64TARGET_MDL_TOO_SMALLtarget MDL too large to map the whole range of addresses requested by a driver.0x00000040
65MUST_SUCCEED_POOL_EMPTYThis Blue Screen appears because must-succeed pool couldn’t fulfill the requests of Kernel-mode thread.0x00000041
66ATDISK_DRIVER_INTERNALInfrequent issue0x00000042
67NO_SUCH_PARTITION“”0x00000043
68MULTIPLE_IRP_COMPLETE_REQUESTSDriver has tried to request an I/O request packet be completed that is already complete.0x00000044
69INSUFFICIENT_SYSTEM_MAP_REGSRare problem0x00000045
70DEREF_UNKNOWN_LOGON_SESSION“”0x00000046
71REF_UNKNOWN_LOGON_SESSION“”0x00000047
72CANCEL_STATE_IN_COMPLETED_IRP BSoD occurs because an IRP was completed, and then was hereinafter canceled.0x00000048
73PAGE_FAULT_WITH_INTERRUPTS_OFFexceptional issue0x00000049
74IRQL_GT_ZERO_AT_SYSTEM_SERVICEStop code appears because of the Thread that is returning back from a system call to user mode whereas its IRQL is higher than PASSIVE_LEVEL.0x0000004A
75STREAMS_INTERNAL_ERRORInfrequent Blue Screen0x0000004B
76FATAL_UNHANDLED_HARD_ERROR“”0x0000004C
77NO_PAGES_AVAILABLEThe error occurs when free pages are unavailable to continue operations.0x0000004D
78PFN_LIST_CORRUPTShows up when page frame number list becomes corrupted.0x0000004E
79NDIS_INTERNAL_ERRORRare problem0x0000004F
80PAGE_FAULT_IN_NONPAGED_AREAOccurs when system references invalid memory.0x00000050
81REGISTRY_ERRORIndicates that registry is damaged and malfunctioning.0x00000051
82MAILSLOT_FILE_SYSTEMInfrequent problem0x00000052
83NO_BOOT_DEVICE“”0x00000053
84LM_SERVER_INTERNAL_ERROR“”0x00000054
85DATA_COHERENCY_EXCEPTION“”0x00000055
86INSTRUCTION_COHERENCY_EXCEPTION“”0x00000056
87XNS_INTERNAL_ERROR“”0x00000057
88FTDISK_INTERNAL_ERRORError appears after system is booted from the incorrect copy of a mirrored partition.0x00000058
89PINBALL_FILE_SYSTEMnonpaged pool memory, when got depleted may lead to a Pinball file system.0x00000059
90CRITICAL_SERVICE_FAILEDInfrequent error0x0000005A
91SET_ENV_VAR_FAILED“”0x0000005B
92HAL_INITIALIZATION_FAILEDFailed HAL initialization leads to throwing BSOD issue0x0000005C
93UNSUPPORTED_PROCESSORWhen machine tries to run run an unsupported processor this Blue screen appears.0x0000005D
94OBJECT_INITIALIZATION_FAILEDRarely occurs0x0000005E
95SECURITY_INITIALIZATION_FAILED“”0x0000005F
96PROCESS_INITIALIZATION_FAILED“”0x00000060
97HAL1_INITIALIZATION_FAILED“”0x00000061
98OBJECT1_INITIALIZATION_FAILED“”0x00000062
99SECURITY1_INITIALIZATION_FAILED“”0x00000063
100SYMBOLIC_INITIALIZATION_FAILED“”0x00000064
101MEMORY1_INITIALIZATION_FAILED“”0x00000065
102CACHE_INITIALIZATION_FAILED“”0x00000066
103CONFIG_INITIALIZATION_FAILEDWhen Registry configuration gets failed the stop code appears.0x00000067
104FILE_INITIALIZATION_FAILEDInfrequent Blue Screen0x00000068
105IO1_INITIALIZATION_FAILEDinitialization of the I/O system failed leads this stop code to appear.0x00000069
106LPC_INITIALIZATION_FAILEDSeldom occurring Blue screen0x0000006A
107PROCESS1_INITIALIZATION_FAILEDInitialization of the OS failed causes this stop code.0x0000006B
108REFMON_INITIALIZATION_FAILEDOccasionally occurs0x0000006C
109SESSION1_INITIALIZATION_FAILEDWindows OS Initialization failure leads to throw this BSOD.0x0000006D
110SESSION2_INITIALIZATION_FAILED“”0x0000006E
111SESSION3_INITIALIZATION_FAILED“”0x0000006F
112SESSION4_INITIALIZATION_FAILED“”0x00000070
113SESSION5_INITIALIZATION_FAILED“”0x00000071
114ASSIGN_DRIVE_LETTERS_FAILEDRare issue0x00000072
115CONFIG_LIST_FAILEDWhen Core registry hives are unable to link the registry tree this error appears.0x00000073
116BAD_SYSTEM_CONFIG_INFOCorruption in registry is the main cause of this blue screen.0x00000074
117CANNOT_WRITE_CONFIGURATIONWhen registry hive file fails to be converted to a mapped file this BSoD shows up.0x00000075
118PROCESS_HAS_LOCKED_PAGESDevice Driver tries to unlock pages that are previously unlocked or locked and fails to do so throwing the error.0x00000076
119KERNEL_STACK_INPAGE_ERRORMemory fails to read requested page of kernel data coming from the paging file and throws BSOD.0x00000077
120PHASE0_EXCEPTIONAn unexpected crash during HAL initialization causes this issue.0x00000078
121MISMATCHED_HALThe prime cause of this error is Hardware Abstraction Layer revision level or configuration that fails to match that of the computer or kernel.0x00000079
122KERNEL_DATA_INPAGE_ERRORMemory finds itself unable to read the requested page of kernel data.0x0000007A
123INACCESSIBLE_BOOT_DEVICEWindows OS cannot access the system partition while starting up.0x0000007B
124BUGCODE_NDIS_DRIVERWindows identifies a defect in Networking driver.0x0000007C
125INSTALL_MORE_MEMORYLack of memory to start Windows.0x0000007D
126SYSTEM_THREAD_EXCEPTION_NOT_HANDLEDError handler cannot trace out an exception caused by thread.0x0000007E
127UNEXPECTED_KERNEL_MODE_TRAPIntel CPU gives rise to a trap and kernel becomes unable to catch this.0x0000007F
128NMI_HARDWARE_FAILUREA malfunction is progressing into hardware.0x00000080
129SPIN_LOCK_INIT_FAILUREInfrequent issue0x00000081
130DFS_FILE_SYSTEM“”0x00000082
131SETUP_FAILUREfatal error occurred during setup.0x00000085
132MBR_CHECKSUM_MISMATCHThis stop code appears when mismatch happens in the MBR checksum0x0000008B
133KERNEL_MODE_EXCEPTION_NOT_HANDLEDThe error handler fails to identify exception created by kernel-mode application.0x0000008E
134PP0_INITIALIZATION_FAILEDError appears when Plug and Play manager is not able to be initialized.0x0000008F
135PP1_INITIALIZATION_FAILED“”0x00000090
136UP_DRIVER_ON_MP_SYSTEMWindows is running on multiprocessor however driver is assembled to work on only one.0x00000092
137INVALID_KERNEL_HANDLEBSoD generated when Kernel code attempted to end protected or invalid handle.0x00000093
138KERNEL_STACK_LOCKED_AT_EXITBlue screen occurs with this stop code because thread exits while its kernel stack is specified as not swappable0x00000094
139INVALID_WORK_QUEUE_ITEMBSoD appears when queue entry is deleted that includes a NULL pointer.0x00000096
140BOUND_IMAGE_UNSUPPORTEDOccasional problem0x00000097
141END_OF_NT_EVALUATION_PERIODAppears when trial period of Windows comes to end.0x00000098
142INVALID_REGION_OR_SEGMENTBlue screen crops up when ExInterlockedExtendRegion or ExInitializeRegion is called with an invalid set of parameters.0x00000099
143SYSTEM_LICENSE_VIOLATIONViolation of license agreement leads to shape up this BSoD error.0x0000009A
144UDFS_FILE_SYSTEMDamage in UDF File System produces this issue.0x0000009B
145MACHINE_CHECK_EXCEPTIONWhen fatal machine check exception eventuates this error appears.0x0000009C
146USER_MODE_HEALTH_MONITORThe Components of critical user-mode are unable to fulfill a health check0x0000009E
147DRIVER_POWER_STATE_FAILUREBSoD shows up when a driver remains in an invalid or inconsistent power state.0x0000009F
148INTERNAL_POWER_ERROROccurs due to power policy manager that encounters a fatal error.0x000000A0
149PCI_BUS_DRIVER_INTERNALPCI Bus driver identifies inconsistency difficulties in its internal structures and fails to continue.0x000000A1
150MEMORY_IMAGE_CORRUPTDamage in the image of an executable file living in memory leads to this problem.0x000000A2
151ACPI_DRIVER_INTERNALThis mess up occurs because ACPI driver enucleates an internal inconsistency.0x000000A3
152CNSS_FILE_SYSTEM_FILTERReason for the problem is damage to CNSS file system filter.0x000000A4
153ACPI_BIOS_ERRORAdvanced Configuration and Power Interface BIOS is not perfectly acquiescent with the ACPI specification.0x000000A5
154BAD_EXHANDLEThe flaw occurs due to “kernel-mode handle table” that identifies an inconsistent entry state.0x000000A7
155SESSION_HAS_VALID_POOL_ON_EXITDuring this bug situation, session device driver doesn’t release its pool allocations prior to a session unload.0x000000AB
156HAL_MEMORY_ALLOCATIONHardware abstraction layer fails to find enough amount of non-paged memory pool for a critical requirement.0x000000AC
157VIDEO_DRIVER_DEBUG_REPORT_REQUESTVideo port generates a minidump to satisfy the driver’s request.0x000000AD
158BGI_DETECTED_VIOLATIONRare bugcheck0x000000B1
159VIDEO_DRIVER_INIT_FAILUREWindows cannot access graphics mode.0x000000B4
160ATTEMPTED_SWITCH_FROM_DPCDPC tried an illegitimate operation.0x000000B8
161CHIPSET_DETECTED_ERRORInfrequent error0x000000B9
162SESSION_HAS_VALID_VIEWS_ON_EXITA session driver mapped views cannot be unmapped before session unloaded.0x000000BA
163NETWORK_BOOT_INITIALIZATION_FAILEDWindows is unsuccessful to boot off a network.0x000000BB
164NETWORK_BOOT_DUPLICATE_ADDRESSIssue occurs when an extra identical IP address is assigned to the pc while booting off a network.0x000000BC
165INVALID_HIBERNATED_STATEMemory image created by hibernation is not compatible with the previous hardware configuration.0x000000BD
166ATTEMPTED_WRITE_TO_READONLY_MEMORYThe issue appears when driver tries to write read only file.0x000000BE
167MUTEX_ALREADY_OWNEDShape up when thread tries to acquire ownership of a mutex it owns so far.0x000000BF
168SPECIAL_POOL_DETECTED_MEMORY_CORRUPTIONOccurs when driver writes to an invalid area of the special pool0x000000C1
169BAD_POOL_CALLERA thread requests invalid pools.0x000000C2
170DRIVER_VERIFIER_DETECTED_VIOLATIONMalfunctioning of driver verifier gives rise to this code.0x000000C4
171DRIVER_CORRUPTED_EXPOOLThis BSoD appears when system tries to approach invalid memory at a process IRQL that is extremely high.0x000000C5
172DRIVER_CAUGHT_MODIFYING_FREED_POOLDriver tries to access a released memory pool.0x000000C6
173TIMER_OR_DPC_INVALIDThe BSOD appears when DPC or kernel timer remains somewhere in memory where it is not permitted.0x000000C7
174IRQL_UNEXPECTED_VALUEIRQL of processor has not the value what it should be currently.0x000000C8
175DRIVER_VERIFIER_IOMANAGER_VIOLATIONI/O violation by driver verifier throws this issue.0x000000C9
176PNP_DETECTED_FATAL_ERRORBSOD prompts when Plug and Play Manager confront a severe error.0x000000CA
177DRIVER_LEFT_LOCKED_PAGES_IN_PROCESSI/O manager or driver is unsuccessful to free locked pages subsequent to an operation.0x000000CB
178PAGE_FAULT_IN_FREED_SPECIAL_POOLSystem has referenced memory which was previously released.0x000000CC
179PAGE_FAULT_BEYOND_END_OF_ALLOCATIONThe BSOD prompts when system accesses memory beyond the end of some driver’s pool allocation.0x000000CD
180DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONSThe issue takes place when driver fails to terminate pending operations prior to unloading.0x000000CE
181TERMINAL_SERVER_DRIVER_MADE_INCORRECT_MEMORY_REFERENCEDriver, incorrectly ported to the terminal server cause this problem.0x000000CF
182DRIVER_CORRUPTED_MMPOOLThe issue occurs because system tries to access invalid memory at a process IRQL that is extremely high.0x000000D0
183DRIVER_IRQL_NOT_LESS_OR_EQUALKernel-mode driver attempted to access pageable memory while the process IRQL was too high.0x000000D1
184BUGCODE_ID_DRIVERIssue running in an NDIS driver0x000000D2
185DRIVER_PORTION_MUST_BE_NONPAGEDSystem attempted to access pageable memory at a process IRQL that was too high.0x000000D3
186SYSTEM_SCAN_AT_RAISED_IRQL_CAUGHT_IMPROPER_DRIVER_UNLOADDriver doesn’t close pending operations previous to unloading.0x000000D4
187DRIVER_PAGE_FAULT_IN_FREED_SPECIAL_POOLDriver has referenced memory which was earlier freed.0x000000D5
188DRIVER_PAGE_FAULT_BEYOND_END_OF_ALLOCATIONIssue appears when driver accesses memory further away than the end of its pool allocation.0x000000D6
189DRIVER_UNMAPPING_INVALID_VIEWDriver is attempting to unmap mapped address.0x000000D7
190DRIVER_USED_EXCESSIVE_PTESPage table entries are not available further.0x000000D8
191LOCKED_PAGES_TRACKER_CORRUPTIONBSOD occurs because of damage in internal locked-page tracking structures.0x000000D9
192SYSTEM_PTE_MISUSEBSoD shows up because of Page table entry routine which has been used in an improper method.0x000000DA
193DRIVER_CORRUPTED_SYSPTESDriver tries to access memory at an invalid IRQL, possibly because of damage in system Page table entries.0x000000DB
194DRIVER_INVALID_STACK_ACCESSDriver accessed a stack address that resides under the stack pointer of the thread.0x000000DC
195POOL_CORRUPTION_IN_FILE_AREADriver has malfunctioning pool memory that is used for holding pages designated for disk.0x000000DE
196IMPERSONATING_WORKER_THREADWork item did not disable impersonation before it completed.0x000000DF
197ACPI_BIOS_FATAL_ERRORAny component is faulty0x000000E0
198WORKER_THREAD_RETURNED_AT_BAD_IRQLA worker thread completed and returned with IRQL => DISPATCH_LEVEL.0x000000E1
199MANUALLY_INITIATED_CRASHThis Blue screen appears when a user purposely initiates a crash dump from either keyboard or kernel debugger.0x000000E2
200RESOURCE_NOT_OWNEDOccurs after a thread tries to free a resource it didn’t own.0x000000E3
201WORKER_INVALIDIssue is commonly the result of the memory which driver releases but it still contains an executive work item.0x000000E4
202DRIVER_VERIFIER_DMA_VIOLATIONRefers to entire Driver Verifier DMA Verification violations.0x000000E6
203INVALID_FLOATING_POINT_STATEFloating-point state stored by a thread is invalid.0x000000E7
204INVALID_CANCEL_OF_FILE_OPENInvalid file object was passed to IoCancelFileOpen0x000000E8
205ACTIVE_EX_WORKER_
THREAD_TERMINATION
Blue Screen shows up because of termination of an active executive worker thread.0x000000E9
206THREAD_STUCK_IN_DEVICE_DRIVERThread in a driver is everlastingly spinning.0x000000EA
207DIRTY_MAPPED_PAGES_CONGESTIONBlue screen appears when free pages are unavailable to further continue operations.0x000000EB
208SESSION_HAS_VALID_
SPECIAL_POOL_ON_EXIT
A session driver holds memory but session unload occurs.0x000000EC
209UNMOUNTABLE_BOOT_VOLUMEBSOD appears because input and output subsystem tries to mount the boot volume and it fails.0x000000ED
210CRITICAL_PROCESS_DIEDOccurs when critical system process died.0x000000EF
211STORAGE_MINIPORT_ERRORThe prime cause is the storage Miniport driver that fails to satisfy a SRB request.0x000000F0
212SCSI_VERIFIER_DETECTED_VIOLATIONThe Blue Screen of Death refers to entire Driver Verifier SCSI Verification violations.0x000000F1
213HARDWARE_INTERRUPT_STORMOccurrence of this BSOD is because of the kernel that discovers an interrupt storm.0x000000F2
214DISORDERLY_SHUTDOWNWindows fails to shut down because of short of memory.0x000000F3
215CRITICAL_OBJECT_TERMINATIONA process or thread crucial to system operation has unexpectedly exited or been terminated.0x000000F4
216FLTMGR_FILE_SYSTEMBlue Screen of Death appears due to the Filter Manager which encountered unrecoverable failure.0x000000F5
217PCI_VERIFIER_DETECTED_VIOLATIONPCI driver is verifying an error in BIOS or another device.0x000000F6
218DRIVER_OVERRAN_STACK_BUFFERA driver has overrun a stack-based buffer.0x000000F7
219RAMDISK_BOOT_INITIALIZATION_FAILEDWhen RAM disk is used to boot an initialization failure takes place.0x000000F8
220DRIVER_RETURNED_STATUS_REPARSE_FOR_VOLUME_OPENA device driver returned “STATUS_REPARSE” to an IRP_MJ_CREATE request without trailing names.0x000000F9
221HTTP_DRIVER_CORRUPTEDHttp.sys has come to a corrupted state and unable to recover.0x000000FA
222ATTEMPTED_EXECUTE_OF_NOEXECUTE_MEMORYThe Blue Screen of Death bug shows up when trying to execute a non-executable memory.0x000000FC
223DIRTY_NOWRITE_PAGES_CONGESTIONBSOD occurs due to unable to continue basic system operations because of unavailability of free pages.0x000000FD
224BUGCODE_USB_DRIVERUSB driver encounters error.0x000000FE
225RESERVE_QUEUE_OVERFLOWThe issue appears due to overflow of Queue because of inserting a new item into a reserve queue.0x000000FF
226LOADER_BLOCK_MISMATCHReason for this problem is either the loader block is invalid, or it does not match the system that is being loaded.0x00000100
227CLOCK_WATCHDOG_TIMEOUTSecondary processor experience an expected clock interrupt. This occurs in a multi-processor system that doesn’t receive under allocated interval.0x00000101
228DPC_WATCHDOG_TIMEOUTBlue screen of death appears because Deferred Procedure Call watchdog routine isn’t executed in allocated time interval.0x00000102
229MUP_FILE_SYSTEMReason of the BSOD is Multiple UNC provider that has experienced invalid or unexpected data.0x00000103
230AGP_INVALID_ACCESSGraphic Processing Unit writes to a range of AGP memory that had not earlier been committed.0x00000104
231AGP_GART_CORRUPTIONBlue screen appears because GART is corrupt.0x00000105
232AGP_ILLEGALLY_REPROGRAMMEDAn unauthorized agent has re-programmed AGP hardware.0x00000106
233THIRD_PARTY_FILE_SYSTEM_FAILUREFile system filter or 3rd party file system encounter an unrecoverable issue.0x00000108
234CRITICAL_STRUCTURE_CORRUPTIONKernel has identified critical kernel code or data corruption.0x00000109
235APP_TAGGING_INITIALIZATION_FAILED“”0x0000010A
236FSRTL_EXTRA_CREATE_PARAMETER_VIOLATIONBlue Screen occurs when a violation is detected in the FsRtl ECP package.0x0000010C
237WDF_VIOLATIONKMDF identify that Windows find an error in a framework-based driver.0x0000010D
238VIDEO_MEMORY_MANAGEMENT_INTERNALIn this Blue screen condition, video memory manager is unable to recover.0x0000010E
239RESOURCE_MANAGER_EXCEPTION_NOT_HANDLEDBSod refers to the unrecoverable state of resource manager.0x0000010F
240RECURSIVE_NMIA non-maskable-interrupt happens while a previous NMI was going on.0x00000111
241MSRPC_STATE_VIOLATIONIn this issue, Msrpc.sys driver has started a bug check.0x00000112
242VIDEO_DXGKRNL_FATAL_ERRORInfrequent error0x00000113
243VIDEO_SHADOW_DRIVER_FATAL_ERROR“”0x00000114
244AGP_INTERNAL“”0x00000115
245VIDEO_TDR_FAILUREWhen trying to reset display driver furthermore recover from a timeout fails and prompts BSoD.0x00000116
246VIDEO_TDR_TIMEOUT_DETECTEDGraphics driver is unable to respond in a timely method.0x00000117
247VIDEO_SCHEDULER_INTERNAL_ERRORBSoD prompts because video scheduler has encountered a fatal violation.0x00000119
248EM_INITIALIZATION_FAILURERare bugcheck0x0000011A
249DRIVER_RETURNED_HOLDING_CANCEL_LOCKA driver has returned from a cancel routine that holds the global cancel lock.0x0000011B
250ATTEMPTED_WRITE_TO_CM_PROTECTED_STORAGEThe issue occurs when configuration manager read-only protected storage is written.0x0000011C
251EVENT_TRACING_FATAL_ERRORBlue Screen of Death appears because of the Event Tracing sub-system that has experienced an unexpected fatal error.0x0000011D
252TOO_MANY_RECURSIVE_FAULTSA file system has produced lots of recursive faults under low resource conditions that cannot be handled.0x0000011E
253INVALID_DRIVER_HANDLESomebody has stopped the initial handle for a driver between inserting the driver object and referencing the handle.0x0000011F
254BITLOCKER_FATAL_ERRORBSoD occurs because BitLocker drive encryption encountered an issue that it cannot recover from.0x00000120
255DRIVER_VIOLATIONDriver has caused a violation.0x00000121
256WHEA_INTERNAL_ERRORAn internal issue takes place in the Windows Hardware Error Architecture.0x00000122
257CRYPTO_SELF_TEST_FAILURECryptographic subsystem failed a mandatory algorithm self-test during bootstrap.0x00000123
258WHEA_UNCORRECTABLE_ERRORA fatal error in hardware has occurred.0x00000124
259NMR_INVALID_STATENMR has found an invalid state.0x00000125
260NETIO_INVALID_POOL_CALLERAn invalid pool request has been made to netio managed memory pool, e.g. FSB and MDL.0x00000126
261PAGE_NOT_ZEROBlue Screen of Death appears when a page isn’t filled with 0 but it should be.0x00000127
262WORKER_THREAD_RETURNED_WITH_BAD_IO_PRIORITYA worker threads IOPriority was incorrectly changed by the called worker routine.0x00000128
263WORKER_THREAD_RETURNED_WITH_BAD_PAGING_IO_PRIORITYA worker threads Paging IOPriority was wrongly modified by the called worker routine.0x00000129
264MUI_NO_VALID_SYSTEM_LANGUAGEBSOD stop code occurs when Windows doesn’t notice installed, licensed language packs for the default UI language.0x0000012A
265FAULTY_HARDWARE_CORRUPTED_PAGEA damage in memory manager caused by a component that accesses memory through physical addressing.0x0000012B
266EXFAT_FILE_SYSTEMexFAT file system encountered an issue.0x0000012C
267VOLSNAP_OVERLAPPED_TABLE_ACCESSVolsnap attempted to access a common table from two different threads which may result in table corruption and eventually corrupt the table.0x0000012D
268INVALID_MDL_RANGEThis is typically a driver bug.0x0000012E
269VHD_BOOT_INITIALIZATION_FAILEDBlue Screen of death appear because of initialization failure that take place while trying to boot from a VHD.0x0000012F
270DYNAMIC_ADD_PROCESSOR_MISMATCHOccurs when new processor is incompatible with the current configuration0x00000130
271INVALID_EXTENDED_PROCESSOR_STATEAppears when restoring or saving extended processor state.0x00000131
272RESOURCE_OWNER_POINTER_INVALIDBSoD refers to supply of invalid resource owner pointer.0x00000132
273DPC_WATCHDOG_VIOLATIONWhen faulty driver code doesn’t perform its work within the allotted time frame0x00000133
274DRIVE_EXTENDERDrive extender component has encountered a serious internal error that stops continued operation.0x00000134
275REGISTRY_FILTER_DRIVER_EXCEPTIONBlue Screen of death appears because of an unhandled exception in a registry filtering driver.0x00000135
276VHD_BOOT_HOST_VOLUME_NOT_ENOUGH_SPACEWhen trying to boot via VHD an initialization failure occurs.0x00000136
277WIN32K_HANDLE_MANAGERwin32k/ntuser handle manager encounters a fatal error.0x00000137
278GPIO_CONTROLLER_DRIVER_ERRORBSoD occurs when GPIO class extension driver experienced a fatal error.0x00000138
279KERNEL_SECURITY_CHECK_FAILUREKernel has identifies the damage in a critical data structure.0x00000139
280KERNEL_MODE_HEAP_CORRUPTIONKernel mode heap manager identifies damage in a heap.0x0000013A
281PASSIVE_INTERRUPT_ERRORKernel has encountered problems with passive-level interrupt.0x0000013B
282INVALID_IO_BOOST_STATEBSoD occurs when a thread exits with an invalid Input or output boost state.0x0000013C
283CRITICAL_INITIALIZATION_FAILUREBlue Screen of Death prompts when early kernel initialization has failed.0x0000013D
284STORAGE_DEVICE_ABNORMALITY_DETECTEDThis mess up happens when storage driver stack experiences proportion of responsiveness violations surpassing the threshold, or other failures to respond.0x00000140
285VIDEO_ENGINE_TIMEOUT_DETECTEDEither of the display engines is unable to respond in timely method.0x00000141
286VIDEO_TDR_APPLICATION_BLOCKEDDisplay hardware cannot be accessed by an app.0x00000142
287PROCESSOR_DRIVER_INTERNALAppears when PPM driver experiences a fatal error.0x00000143
288BUGCODE_USB3_DRIVEROccurs due to damage in USB 3 driver.0x00000144
289SECURE_BOOT_VIOLATIONA necessary operation not being performed or invalid policy leads to prevent the starting of secure Boot policy enforcement.0x00000145
290ABNORMAL_RESET_DETECTEDThe issue appears when Windows undergo an abnormal reset0x00000147
291REFS_FILE_SYSTEMA file system error has occurred.0x00000149
292KERNEL_WMI_INTERNALBlue Screen of death appears because a fatal error occurs in internal kernel WMI subsystem.0x0000014A
293SOC_SUBSYSTEM_FAILURESystem on Chip subsystems experienced an unrecoverable issue.0x0000014B
294FATAL_ABNORMAL_RESET_ERRORSystem has abnormally reset.0x0000014C
295EXCEPTION_SCOPE_INVALIDAppears because System encounters internal inconsistency in exception dispatching0x0000014D
296SOC_CRITICAL_DEVICE_REMOVEDA critical System on a Chip device has been unexpectedly failed or removed.0x0000014E
297PDC_WATCHDOG_TIMEOUTA system cannot return from standby because component is unable to respond within the allocated time period.0x0000014F
298TCPIP_AOAC_NIC_ACTIVE_REFERENCE_LEAKUntil the send queue is fully drained NIC active reference should isn’t freed.0x00000150
299UNSUPPORTED_INSTRUCTION_MODEPrompts when you try to execute code via an unsupported processor instruction mode.0x00000151
300INVALID_PUSH_LOCK_FLAGSflags supplied to one of push lock APIs were invalid.0x00000152
301KERNEL_LOCK_ENTRY_LEAKED_ON_THREAD_TERMINATIONBefore a thread releases entire AutoBoost lock entries it is terminated.0x00000153
302UNEXPECTED_STORE_EXCEPTIONUnexpected exception occurs in store component.0x00000154
303OS_DATA_TAMPERINGRare bugcheck0x00000155
304WINSOCK_DETECTED_HUNG_CLOSESOCKET_LIVEDUMPBlue screen appears after Winsock encounters a hung transport endpoint close request.0x00000156
305KERNEL_THREAD_PRIORITY_FLOOR_VIOLATIONBSoD occurs when on the priority floor of a particular thread an illegal operation is attempted.0x00000157
306ILLEGAL_IOMMU_PAGE_FAULTBlue Screen of Death appears because IOMMU has delivered a page fault packet for an invalid ASID.0x00000158
307HAL_ILLEGAL_IOMMU_PAGE_FAULTIOMMU vendor has delivered a page fault against an ASID that was in the process of being freed.0x00000159
308SDBUS_INTERNAL_ERRORSD-attached device encountered unrecoverable hardware failure.0x0000015A
309WORKER_THREAD_RETURNED_WITH_SYSTEM_PAGE_PRIORITY_ACTIVEBlue screen occurs when called worker routine leaks worker thread’s system page priority0x0000015B
310PDC_WATCHDOG_TIMEOUT_LIVEDUMPBSOD occurs because a system component becomes unable to respond within the allocated time period and prevents from exiting or entering standby.0x0000015C
311SOC_SUBSYSTEM_FAILURE_LIVEDUMPSoC subsystem encountered a critical fault and captured a live kernel dump.0x0000015D
312BUGCODE_NDIS_DRIVER_LIVE_DUMPNDIS has captured a live kernel dump.0x0000015E
313CONNECTED_STANDBY_WATCHDOG_TIMEOUT_LIVEDUMPBlue Screen appears because an issue prompts in connected standby watchdog timeout.0x0000015F
314WIN32K_ATOMIC_CHECK_FAILUREWin32k function has violated an ATOMICCHECK.0x00000160
315LIVE_SYSTEM_DUMPBlue Screen occurs because the system administrator requested the collection of a live system memory dump.0x00000161
316KERNEL_AUTO_BOOST_INVALID_LOCK_RELEASEA thread that doesn’t own a lock has freed the lock tracked by AutoBoost.0x00000162
317WORKER_THREAD_TEST_CONDITIONKernel worker threads raised a failure.0x00000163
318WIN32K_CRITICAL_FAILUREWin32k has encountered a critical failure.0x00000164
319CLUSTER_CSV_STATUS_IO_TIMEOUT_LIVEDUMP SMB client on the non-coordinating node complains that an IO on coordinating node is taking too long and fails all IOs with STATUS_IO_TIMEOUT.0x00000165
320CLUSTER_RESOURCE_CALL_TIMEOUT_LIVEDUMPBSOD occurs after Cluster Resource call takes more time than configured timeout.0x00000166
321CLUSTER_CSV_SNAPSHOT_DEVICE_INFO_TIMEOUT_LIVEDUMPCluster Service call to the volume snap to query snapshot information took too long.0x00000167
322CLUSTER_CSV_STATE_TRANSITION_TIMEOUT_LIVEDUMPBlue screen throws up because Cluster Shared Volume state transition takes too long.0x00000168
323CLUSTER_CSV_VOLUME_ARRIVAL_LIVEDUMPCSV Manager was asked to create a new volume device object, and it has not reached in time.0x00000169
324CLUSTER_CSV_VOLUME_REMOVAL_LIVEDUMPBlue Screen occurs because a CSV Manager volume removal request has timed out.0x0000016A
325CLUSTER_CSV_CLUSTER_WATCHDOG_LIVEDUMPCluster service user mode watchdog identified that a thread is not progressing for a long.0x0000016B
326INVALID_RUNDOWN_
PROTECTION_FLAGS
The reason of this Blue Screen error is the flags supplied to one of the rundown protection APIs which were invalid.0x0000016C
327INVALID_SLOT_ALLOCATOR_FLAGSflags supplied to one of the slot allocation API were invalid.0x0000016D
328ERESOURCE_INVALID_RELEASEtarget thread pointer supplied to ExReleaseResourceForThreadLite was invalid.0x0000016E
329CLUSTER_CSV_STATE_TRANSITION_INTERVAL_TIMEOUT_LIVEDUMPCSV next state transition request has not reached.0x0000016F
330CRYPTO_LIBRARY_INTERNAL_ERRORBlue Screen throws up when internal error in the crypto libraries occurs.0x00000170
331CLUSTER_CSV_CLUSSVC_DISCONNECT_WATCHDOGCluster disconnect is not making forward progress.0x00000171
332COREMSGCALL_INTERNAL_ERRORCoreMessageCall encountered an unrecoverable error.0x00000173
333COREMSG_INTERNAL_ERRORBlue Screen appears when CoreMessaging detects an unrecoverable error.0x00000174
334PREVIOUS_FATAL_ABNORMAL_RESET_ERRORSystem has abnormally reset Windows phone or unrecoverable error occurred.0x00000175
335ELAM_DRIVER_DETECTED_FATAL_ERROREarly Launch Antimalware driver detected a fatal error.0x00000178
336CLUSTER_CLUSPORT_STATUS_IO_TIMEOUT_LIVEDUMPSMB client on the initiator node complains that an IO to a target node is taking too long and fails all IOs with STATUS_IO_TIMEOUT.0x00000179
337PROFILER_CONFIGURATION_ILLEGALRare bugcheck0x0000017B
338PDC_LOCK_WATCHDOG_LIVEDUMPBSoD prompts up when thread has been holding PDC lock too long.0x0000017C
339PDC_UNEXPECTED_
REVOCATION_LIVEDUMP
System unexpectedly revokes activator.0x0000017D
340MICROCODE_REVISION_MISMATCHEither one or multiple processors in the configuration have loaded inconsistent microcode.0x0000017E
341VIDEO_DWMINIT_TIMEOUT_FALLBACK_BDDVideo fell back to Behavior-Driven Development rather than using the IHV driver.0x00000187
342CLUSTER_CSVFS_LIVEDUMPCSV File System initiated this livedump to help debug an inconsistent state.0x00000188
343BAD_OBJECT_HEADEROccurs because of damage in OBJECT_HEADER.0x00000189
344SECURE_KERNEL_ERRORSecure kernel confronts a fatal error.0x0000018B
345HYPERGUARD_VIOLATIONBlue Screen throws up because kernel has identified critical kernel or code data have been corrupted.0x0000018C
346SECURE_FAULT_UNHANDLEDSecure fault originated by the secure kernel could not be handled.0x0000018D
347KERNEL_PARTITION_
REFERENCE_VIOLATION
Issue takes place because a partition was improperly dereferenced.0x0000018E
348WIN32K_CRITICAL_FAILURE_LIVEDUMPWin32k has encountered a critical failure.0x00000190
349PF_DETECTED_CORRUPTIONRare bugcheck0x00000191
350KERNEL_AUTO_BOOST_LOCK_ACQUISITION_WITH_RAISED_IRQLA lock tracked by AutoBoost was acquired while executing at DISPATCH_LEVEL or above.0x00000192
351VIDEO_DXGKRNL_LIVEDUMPdxgkrnl causes a livedump.0x00000193
352SMB_SERVER_LIVEDUMPBSOD prompts when SMB server encounters an issue and has captures a kernel dump to gather debug information.0x00000195
353LOADER_ROLLBACK_DETECTEDOS loader edition doesn’t match the OS.0x00000196
354WIN32K_SECURITY_FAILUREWIN32K experiences security failure.0x00000197
355UFX_LIVEDUMPUFX livedump occurred.0x00000198
356KERNEL_STORAGE_SLOT_IN_USEBlue Screen of Death appears since storage slot fails to be released because there is an object using it.0x00000199
357WORKER_THREAD_RETURNED_WHILE_ATTACHED_TO_SILO“A worker thread attached to a silo and did not detach before returning”.0x0000019A
358TTM_FATAL_ERRORBSOD occurs when Terminal topology manager (TTM) encountered a fatal error.0x0000019B
359WIN32K_POWER_
WATCHDOG_TIMEOUT
Win32k didn’t turn on the monitor in a timely method.0x0000019C
360CLUSTER_SVHDX_LIVEDUMPSVHDX initiated this livedump to help debug an inconsistent state.0x0000019D
361TTM_WATCHDOG_TIMEOUTTerminal topology manager (TTM) identified that some device specific operations did not compete with the configured timeouts .0x000001A0
362CALL_HAS_NOT_RETURNED_WATCHDOG_TIMEOUT_LIVEDUMPA call has not returned within the timeout period.0x000001A3
363DRIPS_SW_HW_DIVERGENCE_LIVEDUMPRare bugcheck0x000001A4
364USB_DRIPS_BLOCKER_SURPRISE_REMOVAL_LIVEDUMPA USB device will be surprisingly removed seeing that it is blocking DRIPS.0x000001A5
365BLUETOOTH_ERROR_RECOVERY_LIVEDUMPbthport.sys has tried to recover and reset the radio from an irremediable internal condition.0x000001A6
366SMB_REDIRECTOR_LIVEDUMPSMB redirector has identified an issue and has gathered a kernel dump to collect debug information.0x000001A7
367VIDEO_DXGKRNL_BLACK_SCREEN_LIVEDUMPA user initiated DXGKRNL livedump for the scenarios of black screen.0x000001A8
368VIDEO_MINIPORT_FAILED_LIVEDUMPRare bugcheck0x000001B0
369DRIVER_VERIFIER_DETECTED_VIOLATION_LIVEDUMPA driver trying to damage the system has been detected.0x000001C4
370IO_THREADPOOL_DEADLOCK_LIVEDUMPA kernel mode thread pool experienced a deadlock condition.0x000001C5
371FAST_ERESOURCE_
PRECONDITION_VIOLATION
A current thread is carrying out an invalid call to a fast resource routine.0x000001C6
372STORE_DATA_STRUCTURE_CORRUPTIONThe store component identified a malfunction in its data structures.0x000001C7
373MANUALLY_INITIATED_POWER_BUTTON_HOLDBSOD appears when a user holds power button for a specified time0x000001C8
374USER_MODE_HEALTH_MONITOR_LIVEDUMPBlue Screen of Death appears when a critical user mode component is unable to fulfill a health check.0x000001C9
375SYNTHETIC_WATCHDOG_TIMEOUTSystem freezes and not processing timer ticks.0x000001CA
376INVALID_SILO_DETACHA thread cannot detach from a silo prior to exiting.0x000001CB
377EXRESOURCE_TIMEOUT_LIVEDUMPA deadlock situation or heavy contention which can lead to performance problems.0x000001CC
378INVALID_CALLBACK_STACK_ADDRESSBSOD occurs because the callback stack seems to be a user mode address which is illegitimate.0x000001CD
379INVALID_KERNEL_STACK_ADDRESSIn the middle of context switch, an invalid initial kernel stack address was encountered.0x000001CE
380HARDWARE_WATCHDOG_TIMEOUTSystem freezes and is not processing timer ticks.0x000001CF
381CPI_FIRMWARE_WATCHDOG_TIMEOUTACPI driver was not able to perform a task in expected allotted time.0x000001D0
382TELEMETRY_ASSERTS_LIVEDUMPIssue throws up when a Telemetry Assert verification fails.0x000001D1
383WORKER_THREAD_INVALID_STATEThe problem refers to the invalid state of an executive worker thread.0x000001D2
384WFP_INVALID_OPERATIONA Filtering Platform callout carries out an invalid operation.0x000001D3
385UCMUCSI_LIVEDUMPAn UcmUcsi class extension has experienced an error.0x000001D4
386DRIVER_PNP_WATCHDOGA driver is not able to perform a PnP operation under a specific time.0x000001D5
387WORKER_THREAD_RETURNED_WITH_NON_DEFAULT_WORKLOAD_CLASSA worker thread modified its workload class and didn’t revert it prior to returning.0x000001D6
388EFS_FATAL_ERRORAn Encrypting File System error situation has occurred such that cannot be handled without data loss or data corruption.0x000001D7
389UCMUCSI_FAILUREUCSI class extension has experienced an issue.0x000001D8
390HAL_IOMMU_INTERNAL_ERRORHAL IOMMU library encountered an internal error issue.0x000001D9
391IPI_WATCHDOG_TIMEOUTBlue screen of death prompts when a processor gets stuck in an IPI loop for more than the allowed time.0x000001DB
392DMA_COMMON_BUFFER_VECTOR_ERRORA driver has put the DMA vectored common buffer APIs to wrong use.0x000001DC
393XBOX_ERACTRL_CS_TIMEOUTBSOD throws up because eractrl.sys driver fails to transition the Xbox console to or from standby after an extended time.0x00000356
394BC_BLUETOOTH_VERIFIER_FAULTA driver has caused a violation.0x00000BFE
395BC_BTHMINI_VERIFIER_FAULTBluetooth miniport extensible driver verifier has caught a violation.0x00000BFF
396HYPERVISOR_ERRORIssue prompts because hypervisor has experienced a fatal error.0x00020001
397SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_MSimilar to SYSTEM_THREAD_EXCEPTION_NOT_HANDLED0x1000007E
398UNEXPECTED_KERNEL_MODE_TRAP_MSimilar to UNEXPECTED_KERNEL_MODE_TRAP0x1000007F
399KERNEL_MODE_EXCEPTION_NOT_HANDLED_MSimilar to KERNEL_MODE_EXCEPTION_NOT_HANDLED0x1000008E
400THREAD_STUCK_IN_DEVICE_DRIVER_MSimilar to THREAD_STUCK_IN_DEVICE_DRIVER0x100000EA
401THREAD_TERMINATE_HELD_MUTEXBlue Screen of Death throws up because a driver obtained a mutex on a thread that exited before it could be freed.0x4000008A
402STATUS_CANNOT_LOAD_REGISTRY_FILEAs the code says registry file could not be loaded.0xC0000218
403WINLOGON_FATAL_ERRORBSOD appears when Winlogon process is unexpectedly closed.0xC000021A
404STATUS_IMAGE_CHECKSUM_MISMATCHA system DLL or driver has been damaged.0xC0000221
405MANUALLY_INITIATED_CRASH1Blue Screen of Death prompts when a User intentionally initiated a crash dump using keyboard or kernel debugger.0xDEADDEAD

Helpful tools to research or fix:

  1. BlueScreenView
  2. Whocrashed
  3. Restoro
  4. Reimage
Repair any Windows problems such as Blue/Black Screen, DLL, Exe, application, Regisrty error and quickly recover system from issues using Reimage.
 
  
About Sunita
Love to play with Windows 11 and 10. Suggestion - Going for Registry change or system files edit then remember to take a backup or create a restore point before Starting.