How to Fix Windows Defender Not Turning On
Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix PowerShell 'Service Unavailable Permission Denied' Error
When you run a PowerShell command and see Service Unavailable Permission Denied, it ...
OBS Virtual Camera Black Screen: How to Fix
If you see a black screen when using OBS Studio’s virtual camera in Zoom, Teams, or other apps, t...
Windows Security App Missing in Windows 11: How to Restore It
If you open Start and type 'Windows Security' but nothing appears, or you get an error when tryin...
Cloudflare 522 Error: How to Fix Firewall-Caused Connection Timeouts
If you see a Cloudflare 522 error, it means Cloudflare connected to your origin server but the se...
Windows Defender Rate Limit Error Troubleshooting Checklist
You might see a Windows Defender rate limit error when scanning files or updating definitions. Th...