How to Fix Windows Security Error 0x80070422
You open Windows Security and get error 0x80070422, or see a message that the app can't start. Th...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Update Error 0x80070643 in Windows 11
You're trying to install a Windows 11 update, but it fails with error 0x80070643. This usually me...
Windows Defender Exclusions for Gaming Performance
If your games stutter, take long to load, or feel sluggish, Windows Defender might be scanning ga...
Fix Windows Activation Permission Denied After Update
After a Windows update, you might see a “permission denied” error when trying to activate Windows...
Fix Windows Defender Dependency Conflict in Windows 10
You may see an error like "Windows Defender can't start because a dependency service is not runni...
Fix Microsoft Store Error by Changing DNS Settings
If the Microsoft Store won't load, shows error 0x80131500, or fails to download apps, a DNS issue...
Topic paths
Quick titles
Fix Microsoft Teams DNS Error After UpdateMicrosoft Store Sign In Loop SolutionOffice 365 CMD Token Expired Error TroubleshootingHow to Resolve Windows Update 0x80070002Windows Terminal Memory Not Dropping: Fixes That WorkHow to Unstick Windows Update on a MacLinux Chrome Profile Access Denied FixResolve pip SSL Certificate Verification Issue