Windows 11 Insider Preview Quality Update (26220.8165) Install error - 0x800736b3

Hello,

Suggest you to run System File Checker scan:

1. Search for 'command prompt' using Windows Search.

2. From results, right click on Command Prompt and select Run as administrator.

3. Type sfc /scannow command and press Enter key.

4. Let the command complete and then reboot the machine.

If that doesn't works, try these steps:

1. Search for 'windows powershell' using Windows Search.

2. From results, choose Windows PowerShell and select Run as administrator.

3. Then type/paste following and press Enter key:

Repair-WindowsImage -Online -RestoreHealth

4. Let the command complete, restart your system then.

Let us know if this helps!

ok

If the issue is related to timing or pending operations, sometimes waiting 24 hours, as you mentioned, allows background processes to complete.