How to Fix Fix Windows Update Error 0x800F0922 on Windows
Windows Update failing with error code 0x800F0922? This error often means the System Reserved partition is too small or .NET Framework installation failed. Fix it on Windows 10 and 11.
📖
Main Troubleshooting Guide
How to Fix Windows Update Errors →Complete symptoms, causes, and step-by-step solutions
Symptoms
You might be experiencing this problem if you notice:
- •Windows Update fails with error 0x800F0922
- •Feature update (e.g., 23H2 → 24H2) fails at a percentage with this error
- •.NET Framework update fails with 0x800F0922
- •Cumulative update keeps failing and rolling back with this code
- •Error appears after multiple retry attempts
- •Update downloads successfully but fails during installation phase
- •Error in Windows Update History: "Failed to install on [date] — 0x800F0922"
Common Causes
- ⚠System Reserved partition (EFI/MSR) too small — needs at least 500MB for feature updates
- ⚠.NET Framework installation or update failed
- ⚠VPN connection interfering with Windows Update servers
- ⚠Windows Update service unable to connect to Microsoft servers
- ⚠Insufficient disk space on the system partition
- ⚠Corrupted Windows Update components
- ⚠Third-party firewall blocking update connectivity
Solutions
Solution 1: Disconnect VPN and Retry
- 1VPN connections are a common cause of 0x800F0922:
- 2Disconnect any active VPN connection
- 3Close the VPN client entirely (check system tray)
- 4Try Windows Update again
- 5If it works: the VPN was blocking the connection to Microsoft update servers
- 6After updating: reconnect your VPN
- 7For permanent fix: add Windows Update server exceptions to your VPN split-tunnel config
Solution 2: Fix System Reserved Partition Size
- 1Feature updates need space on the System Reserved / EFI partition:
- 2Open Disk Management (diskmgmt.msc) — check "System Reserved" or "EFI" partition size
- 3If under 500MB: this is likely the cause
- 4Expanding this partition is risky — Microsoft offers a tool:
- 5Download the Windows Update Assistant or Media Creation Tool from microsoft.com
- 6These tools handle partition requirements automatically
- 7Alternative: boot from Windows installation USB → select "Upgrade" → it resizes as needed
Solution 3: Fix .NET Framework Issues
- 1If the error is specifically from a .NET update:
- 2Open CMD as Admin: DISM /Online /Enable-Feature /FeatureName:NetFx3 /All
- 3Then: DISM /Online /Cleanup-Image /RestoreHealth
- 4Then: sfc /scannow
- 5Retry the update
- 6If .NET 3.5 install fails: download the offline installer from Microsoft
- 7For .NET 4.x issues: download the latest .NET Framework directly from Microsoft
Solution 4: Reset Windows Update Components
- 1Open CMD as Administrator:
- 2net stop wuauserv
- 3net stop cryptSvc
- 4net stop bits
- 5ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
- 6ren C:\Windows\System32\catroot2 catroot2.old
- 7net start wuauserv && net start cryptSvc && net start bits
- 8Retry the update
FIXES THIS IN 5 MINUTES
Fix Fix Windows Update Error 0x800F0922 Automatically
RescuePC Toolkit includes 109+ automated repairs that fix this problem with one click. No command line knowledge required.
Download Now - Free TrialNo credit card required • Works on Windows 10 & 11