Cumulative Update for Windows 11 (10.0.22000.100) (KB5004300) - Error 0x800f0900

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Briggie wrote:

So tried sfc /scannow and it says there were corrupt files, but was unable to fix them. It points me to the path of the cbs.log file which I have attached.

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Briggie, try these steps:

1. Search for 'windows powershell' using Cortana or 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!