Checklist for Windows Update Connection Refused Issues
When Windows Update fails with a "connection refused" or "server refused connection" error, it us...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Chrome Extensions Not Loading After Sync Issue
You sign into Chrome on a new computer, expecting all your extensions to appear. Instead, some ar...
Fix Windows Activation Invalid Configuration Error
You see a message that your Windows activation is invalid due to a configuration problem. This us...
Fix Edge Update Not Working After Windows Update
After installing a recent Windows update, you might find that Microsoft Edge refuses to update. T...
Fix Windows Security Not Starting Automatically After Boot
You boot your PC and notice Windows Security (formerly Windows Defender) isn't running. The icon ...
Fix 'Security Module Not Found' in Windows Defender
If you see a message in Windows Security that says something like "Security module not found" or ...