
Welcome to Windows 11
Welcome to Windows 11 – a new, easy, and fast way to work, play, and stay connected
What is Error 0x80070306 in Windows 11?
The error code 0x80070306 in Windows 11 typically occurs when the system fails to install a Windows Update. This issue may be caused by corrupted system files, software conflicts, or issues within the Windows Update components. It commonly affects major feature updates or cumulative patches.
Why Does Error 0x80070306 Happen?
- Corrupted or missing system files
- Outdated or incompatible drivers
- Conflicts with antivirus or firewall software
- Damaged Windows Update components
- Interrupted or improperly completed updates
Step-by-Step Fixes for Error 0x80070306
1. Use the Built-in Windows Update Troubleshooter
- Navigate to: Settings > System > Troubleshoot > Other troubleshooters
- Click Run next to Windows Update
- Follow the recommended steps
✅ 2. Reset Windows Update Components
Open Command Prompt as Administrator, then enter:
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
🔄 Restart your PC and retry the update.
✅ 3. Repair System Files Using SFC & DISM
In the Command Prompt (Admin), run:
sfc /scannow
Followed by:
DISM /Online /Cleanup-Image /RestoreHealth
🔁 Restart once done.
✅ 4. Temporarily Disable Antivirus Software
Turn off any third-party antivirus/firewall tools temporarily. These can block update processes. Be sure to re-enable them after the update.
✅ 5. Perform a Clean Boot
- Press
Win + R
, typemsconfig
, press Enter - In the Services tab, check Hide all Microsoft services and click Disable all
- Go to Startup tab > Open Task Manager > Disable all startup apps
- Restart your computer and attempt the update