Here are my notes about windows update problems with all the steps I usually use, checking WU between each one.. You may have done some of them already but I don't think anyone has suggested a repair install which is the final step on my list.
Common Fixes for Windows Update Errors
- Restart Your PC. A simple restart can often resolve temporary glitches. Disable your AV as well. Check the free space on your system drive (usually C:). Ensure you have at least 10-15 GB of free space
- Check System Date & Time. Right-click the clock on the taskbar and select Adjust date and time.
- Ensure Set time automatically and Set time zone automatically are enabled.
- If they are already on, toggle them off and then back on. Click Sync now under Additional settings.
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- Issues with essential system services. Press Windows key + R, type services.msc, and press Enter.
In the Services window, locate the following services. Check their startup type:
Windows Update - Set to Automatic or Manual.
Background Intelligent Transfer Service (BITS) - Set to Automatic (Delayed Start) or Manual.
Cryptographic Services Set to Automatic
Windows Installer- Set to Manual
App Readiness- Set to Manual.
For each of those services:
Right-click the service name.
If the service is running, click
Restart.
If the service is stopped, click
Start.
- Run the Windows Update Troubleshooter
- Settings>System>Troubleshoot>Other Troubleshooters. Then restart.
- Corrupted Windows Update components or cache. Reset Windows Update in Windows 11
- Corrupted system file. Run System File Checker (SFC) and DISM
Run SFC Scan
Open Command Prompt as administrator (search for cmd, right-click, Run as administrator).
Type the command:
sfc /scannow
Press Enter and wait for the scan to complete (this may take some time).
Note the results. If it found and fixed errors, restart your PC and try updating.
Run DISM Scan
If SFC didn’t fix the issue or couldn’t run, use DISM (Deployment Image Servicing and Management) to repair the Windows image.
Open Command Prompt as administrator.
Type the following commands one by one, pressing Enter after each:
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /CheckHealth
[c[DISM /Online /Cleanup-Image /RestoreHealth[/c]
(Note: The RestoreHealth command may take considerable time and requires an internet connection.)
Restart your computer after the DISM scans complete.
Manually Download and Install the Update via Microsoft Update Catalog
Go to the
Microsoft Update Catalog website.
Search for the specific KB number, ex: KB5055523. (
Note: If this KB number is very new, specific to an Insider build, or does not officially exist, it may not be listed here. In such cases, this method won’t be possible for this exact KB.)
Find the version matching your Windows 11 system architecture (usually x64 for modern PCs). Look for “Windows 11” in the description.
Click the
Download button next to the correct version.
A pop-up window will appear with a download link (.msu file). Click the link to download the file.
Once downloaded, double-click the .msu file to start the standalone installation process.
Follow the on-screen prompts and restart your PC if required.
Try to apply the update in a clean boot state. https://www.elevenforum.com/t/perform-a-clean-boot-in-windows-11-to-troubleshoot-software-conflicts.2787/
Perform a repair install. https://www.elevenforum.com/t/repair-install-windows-11-with-an-in-place-upgrade.418/