how to fix Windows 11 Update Error 0x800f0845

Hello,

When you get error 0x800f0845, that means that some Windows Update components might have been corrupted.

To fix this, please open a Command Prompt window as admin and then copy and paste these commands:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
Ren C:\Windows\System32\catroot2 Catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver

After you restart, try running the updates again.

Let me know how this goes.

Thanks for reaching out. Error 0x800f0845 usually means something went wrong with system files or the update process. Can you share if this happens during a feature update or a regular cumulative update?

Try these:

• Run the Windows Update Troubleshooter under Settings → System → Troubleshoot → Other troubleshooters.
• Open Command Prompt (Admin) and run these commands one at a time:

sfc /scannow

DISM /Online /Cleanup-Image /RestoreHealth

• Restart your PC and try Windows Update again.
• If the issue stays, use the Windows 11 Installation Assistant from the official Microsoft site to repair your system without losing files.