KB4490481 for Windows 10 1809 17763.404 – 2 April. 2019

KB4490481 is a new cumulative update rolled out on April 2, 2019, by Microsoft. This patch provides a bunch of various fixes and improvements to the build 17763.404 Windows 10 for version 1809. The main issues on which they focus on are – audio devices, Game Mode, time zone,  Japanese Era and lots more. Furthermore, the update introduces quality improvements to make Windows 10 more reliable.

You are able to download KB4490481 as MSI file format from Microsoft update catalog website. However, the manual installation is an easier option when you fail to get the patch automatically. Take a look at all the patches at one place – Windows 10 Cumulative Updates List.

KB4490481 –


KB4490481 Windows 10 1809 improvements and fixes details

This is actually a bug fixing patch brings no new feature to the operating system but comprise of multiple quality improvements like –

  • With this update, the issue in the various audio devices arises on the machine has been resolved. Now, the internal or external audio output devices of an application will not fail unexpectedly. Normally, those users experience this issue most who prefer another audio output device instead of “Default Audio Device”. For instance – Audio Manager, Realtek HD, Windows Media Player, and more.
  • This cumulative update works on Game Mode. It ensures that now the feature will not impact your experiences. This issue mainly occurs when you use any recording software and the industry’s top streaming.
  • Windows 10 team allows activation of insider builds of Enterprise edition for Virtual Desktops in Microsoft Azure. The only tested and approved platform to host Windows 10 Enterprise for Virtual Desktops is Microsoft Azure. It is also a key part of Windows Virtual Desktop.
  • Reading list in Edge will not damage when you update the OS.
  • Internet Explorer will run smoothly while browsing.
  • Microsoft Expert works on scrolling ActiveX content in a window in Internet Explorer 11. It used to occur when a user triggers scroll operation.
  • The patch KB4490481tries to fix the issue related to the OS. It results in loading the new icon files while encountering a badly formatted icon file.
  • The team updates the time zone information for São Tomé and Príncipe.
  • Another time zone updated is for Buenos Aires, Argentina.
  • Similarly, the time zone information for Kazakhstan is also updated.
  • Now, “Turn off app notifications on the lock screen” policy will not hinder. The path is “Computer Configuration=>Administrative Templates=>System=>Logo”.
  • Microsoft Specialist focuses on the graphics device interface (GDI) DeleteObject() may cause the calling process to stop working when both of the following conditions are true  –
    • The calling process is a WOW64 process that manipulates memory addresses larger than 2 GB.
    • The DeleteObject() is called with a device context that is congenial with a printer device context.
  • Windows 10 team focuses on an issue that prevents applications and callers from connecting to destination endpoints when they use network interfaces that don’t have a default gateway. This issue affects the following:
    • Internet access fails on devices with DSL modems. It also crashes with the PPPoE dial-up Internet connections.
    • Modern and Microsoft Store apps perform as if there is no availability of Internet access on machines holding DSL modems.

However, the Web browsers and Win32 applications that are connected to the Internet are intact by this issue.

  • Microsoft expert tries to fix the issue causing Windows to reuse an expired Dynamic Host Configuration Protocol lease. It happens if the lease expired while the OS was shut down.
  • The issue related to the failure of several Store applications from working is resolved now. They also fix the WeChat on the Universal Windows Platform.
  • When you shut the window, the RemoteApp window coming at the front will also close.
  • The authentication credentials dialog started to appear while connecting an enterprise web server to the Internet.
  • Modern apps icons commenced appearing in the Taskbar. It even also appear in the Task switcher during a RemoteApps connection.
  • The USB cameras for Windows Hello will not fail to register subsequent to the out of box experience setup
  • Tech Giant attaches a setting related to the Group policy that is known as “Enable Windows to soft-disconnect a computer from a network”. This concludes how Windows will disconnect a computer from a network when it determines that the computer should no longer be connected to the network.
    • Windows will disconnect but not immediately from a computer network if it is enabled.
    • Windows disconnect a device from a network immediately if it is disabled.
    • The function is soft-disconnect if it is not configured.

Path – Computer Configuration=>Policies=>Administrative Templates=>Network=>Windows Connection Manager

  • The cumulative update KB4490481 works on preventing a virtual smart card from operating. This problem originates while running in conjunction with Citrix 7.15.2000 Workstation VDA application.
  • You’ll no longer experience the problem related to high-dynamic-range video playback on your screen
  • Microsoft specialist tries to fix the Windows lock screen that prevents users from unlocking a device after multiple smart card users have used the same device. Normally, this issue arises while using a workstation that another user has locked.
  • Windows 10 team works on the memory leak that occurs when a system processes logon sessions.
  • Tech Giant tries to fix Always-On VPN exclusion routes to only work for link-local exclusions.
  • Redmondians address certificate renewal to fail problem which occurs during using CERT_RENEWAL_PROP_ID with the ICertPropertyRenewal interface.
  • The sound of single used programs will not mute which used in kiosk scenarios after the system resumes from sleep.
  • Microsoft specialist works on an issue to meet GB18030 certificate provisions.
  • You’ll not experience the issue related to server performance. It is because of various Windows firewall rules. To enable this solution, use regedit to change the following and set it to 1 –
    • Type – “DeleteUserAppContainersOnLogoff” (DWORD)
    • Path – HKEY_LOCAL_MACHINE=>SYSTEM=>CurrentControlSet=>Services=>SharedAccess=>Parameters=>FirewallPolicy
  • The patch tries to fix the obstructing problem in the decryption of data using Windows 10, version 1703 along with the later versions of Windows. The Tech Giant proclaim that this problem may arise if you encrypted that data using DPAPI-NG or a group-protected PFX file on Windows 10, version 1607, Windows Server 2016, or earlier versions of Windows.
  • They focus on the Extension Mechanisms having unknown options for the Windows DNS Server role.
  • The Windows 10 cumulative update KB4490481 works with evaluating the adaptability status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
  • Microsoft specialist works on a timing issue that may result in an access violation when configuring Switch Embedded Teaming (SET).
  • Redmondians address Remove-StoragePool PowerShell cmdlet problem of failing to clear pool metadata on NVDIMM physical disks.
  • The cumulative update KB4490481 empowers X2APIC support for AMD platforms. This support is to sustain 256 or more logical processors on Windows Server 2019.
  • Tech Giant works on date parsers which are prevented from converting future and past dates (Gregorian and Japanese) in compound documents to a relevant Japanese Era date.
  • Users will not be hindered from enabling gan-nen support for the Japanese Era.
  • Now, the screen refresh rates will not slug while creating and destroying several child windows by an application.
  • Windows 10 team addresses the start menu layout to reset at every logon. This happens when you upgrade the Windows 10 V1809 from the prior version.
  • Microsoft specialist works on Wdiwifi.SYS that obstruct working with the error “7E (0xc0000005)”. This issue used to occurs when a client device is roaming between wireless access points having the same BSSIDs on the 2.4 GHz and 5GHz bands.

KB4490481 Known issues

Symptom Workaround

On installing this patch KB4490481, you may experience some desperating issues regarding Internet Explorer 11 and other applications using  WININET.DLL. This problem befalls when several people use the same user account for multiple login sessions on the same Windows Server machine. It comprises Remote Desktop Protocol and Terminal Server logons. Symptoms reported by customers –

  • The size of cache and location display zero or empty.
  • Keyboard shortcuts may not operate correctly.
  • Webpages may load with intermissions or render correctly.
  • Issues with credential prompt.
  • Issues when downloading files.

Windows 10 team recommend you to create unique user accounts so that two people don’t share the same user account when logging on to a Windows Server machine. Besides, disable multiple RDP sessions for a single user account for a specific Windows Server.

The Developer team is working on a resolution and will provide an update in an upcoming release.

With this patch, applications started to stop answering due to MSXML6. This issue takes place if an exception was thrown at the time of “node operations”. For instance –  appendChild()insertBefore(), and moveNode().

The Group Policy editor may stop answering. It occurs while editing a Group Policy Object that consists of Group Policy Preferences for Internet Explorer 10 settings.

Moreover, Microsoft is working on a resolution and will provide an update in a forthcoming release.
Custom URI Schemes for Application Protocol handlers. With this update, it may not start a similar application for a local intranet.

Right-click on the URL link and it’ll open a new window Or, just turn On the Protected Mode in Internet Explorer for local intranet and trusted websites.

  • Go to Tools=Internet options=Security.
  • Hereafter, Choose a zone to observe or edit security settings
  • Select Local intranet and then click Enable Protected Mode.
  • After that, select Trusted sites and then choose Enable Protected Mode.
  • At last, click the OK button.

Finally, you need to restart the browser after making these adjustments.

Over and above, Microsoft is working on a resolution. It will provide an update in a forthcoming release.

There may be a chance of arising issues with these update. Whereon the issue occurs using the preboot execution environment. Moreover, It’ll start a device from a Windows Deployment Services server in a particular form to use Variable Window Extension. Here is the possibility of bringing to an end of the WDS server while downloading the image


To disable the Variable Windows Extension, follow any given option. Using them you are able to mitigate the issue –

Option 1- Launch the Administrator Command prompt and type the following –

Wdsutil /Set-TransportServer /EnableTftpVariableWindowExtension:No

Option 2 – The next step is by using the Windows Deployment Services UI.

For this, first of all, open Windows Deployment Services from Windows Administrative Tools.
Thereafter, here is the need to expand Servers and right-click a WDS server.
Subsequently, open its features and then clear the Enabled Variable Window Extension box on the TFTP tab.
Option 3 –
Set the following registry value to 0 –




Ultimately, when the variable Window Extension is turned Off, start again the WDSServer service.

Besides, Microsoft is working on a resolution. It will render an update in a forthcoming release.

Your system will stop functioning and also a blue screen will visible at the startup. This issue arises if you enable per font end-user-defined characters. However, this is not a common setting in non-Asian regions. If you want to avert this issue, simply don’t allow per font EUDC. Additionally, you’re also able to edit the registry to mitigate this issue in an alternative manner.

Furthermore, Microsoft is working on a resolution. It will provide an update in a forthcoming release.

How to download KB4490481 for Windows 10, 1809 and install

Prior to getting the latest cumulative updates KB4490481, we advise you to install the latest servicing stack update. Doing this, it would enhance the performance of the update process in order to mitigate the potential issues. To get KB4490481 through Windows update –

Step-1: Press Win+I to launch Settings.

Step-2: Click Update & Security category.

Step-3: Thereafter, select Check for updates button on the right side of the following page.

You are able to Download KB4490481 from Microsoft Update Catalog.

Source – Release note.

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Topics:  Windows update