Fix Windows Defender Module Not Found After Antivirus Uninstall
After uninstalling a third-party antivirus program, Windows Defender may fail to load its modules...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Windows Security Loading Issue with Built-In Repair Tools
If Windows Security (formerly Windows Defender) won't open or gets stuck on a loading screen, the...
Fix Windows Defender Blocking Legitimate Software
You install a legitimate application, and Windows Defender immediately blocks it or deletes its f...
Fix PowerShell Proxy Authentication Failed Errors
You run a PowerShell command that needs internet access—like Invoke-WebRequest or
Fix Windows Defender Rate Limit Error Not Working
If you see a 'rate limit error' in Windows Defender and it's not working properly—scanning fails,...
Fix Chrome Profile Port Already Allocated Error
You start Chrome and see an error like "The profile appears to be in use by another Chrome pr...