Fix Windows Activation Error 0x8007007b
If you see error 0x8007007b when trying to activate Windows, it usually means the activation serv...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labMicrosoft Store Version Mismatch Troubleshooting Checklist
You open the Microsoft Store, see an update available, but when you try to install it, you get a ...
Fix Microsoft Store Authentication Failed Error
When you see an authentication failed error in the Microsoft Store, it usually means the store ca...
Fix Windows Security Not Opening or Running Slow
If Windows Security (formerly Windows Defender) won't open or takes forever to load, it's usually...
Fixing Command Prompt Authentication Failed Access Denied
You're running a command in Command Prompt and get hit with "Authentication failed" or "Access de...
Fix Windows Update DNS Resolution Problems
When Windows Update fails with errors like 0x80072EFD or 0x8024402C, DNS resolution problems are ...