Windows 11 21H2 users who installed the LCU Preview KB5016691 dated 25.08.2022 find a problem with sign in particularly after adding a new Microsoft Account. This issue occurs only for the first sign-in after you restart or log off. It does not affect Azure Active Directory accounts or Active Directory domain users’ accounts. Microsoft acknowledged the issue and delivered an urgent resolution Known Issue Rollback (KIR) to fix this.
The resolution might consume maximum 24 hours to propagate itself to consumer and non-managed business devices. As usual, rebooting might help the resolution to apply faster. For enterprise-managed devices that have received KB5016691 and come across this problem can settle it by installing and configuring a special Group Policy.
New user can’t Sign in to Windows 11 21H2 (KB5016691)
Here is how to fix Fix New user can’t Sign in to Windows 11 21H2 –
Way-1: For consumer and non-managed business devices
- Wait for 24 hours and restart your device. restarting will help the resolution to propagate faster. You will need to allow the lock screen to appear again, you should be able to sign in as expected.
Way-2: For enterprise-managed devices
- You need to install and configure a special Group Policy. The Policy is located in Computer Configuration => Administrative Templates => KB5016691 220722_051525 Known Issue Rollback => Windows 11 (original release).
- Alternatively, you can manually download KB5016691 220722_051525 Known Issue Rollback from the below link –
- Double click on Windows 11 (original release) KB5016691 220722_051525 Known Issue Rollback file.
- Click on Next the Definition Setup wizard.
- In the end select Finish.
- Reboot the device and the New user can’t Sign in to Windows 11 21H2 will be solved.