Fix Windows Update Version Mismatch Not Working
You try to install a Windows update but get a version mismatch error. The update fails, and you'r...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender File Locked During Scan
You run a Windows Defender scan and it reports that a file is locked and can't be scanned. This i...
Fix 'Windows Update Port Already Allocated Permission Denied'
If you see "port already allocated permission denied" when running Windows Update, it usually mea...
Fix OneDrive Sync DNS Errors After Network Change
After changing networks—switching from home to office Wi-Fi, using a VPN, or reconfiguring your r...
How to Fix Windows Update Error 0x80240034 (Rate Limit)
If you see error 0x80240034 when checking for Windows updates, it usually means the update servic...
Fix Windows Security Not Starting Due to Third-Party Antivirus
If Windows Security (formerly Windows Defender) refuses to start or shows a blank screen, a third...
Topic paths
Quick titles
How to Fix Windows Update Connection IssuesResolve Remote Desktop Services 504 ErrorResolve Chrome Profile Timeout at StartupResolve Error 0x80070643 in Windows UpdateFix Windows Defender Dependency Conflict Registry ErrorFix Windows Security Version Mismatch ErrorResolve BitLocker Freeze During Boot on Solid State and Hard DrivesHow to Unlock a File Locked by Windows Security