Knowledge base for software setup, errors, and daily tool work.

Fix 'UFW Status Shows Port Not Active' Error

You run sudo ufw status and see a rule for a port, but the port isn't actually activ...

Fix Windows Security Service Not Running for Antivirus

If Windows Security shows 'Service not running' or your antivirus isn't working, the underlying s...

Fix Microsoft Teams Screen Sharing Not Working on Ubuntu

Screen sharing in Microsoft Teams on Ubuntu often fails silently—your audience sees a black scree...

Microsoft Teams Troubleshooting Checklist: Solve Common Issues

If you're here, you're probably staring at a Teams error, frozen screen, or audio that won't work...

Fix BitLocker Rate Limit Error After Multiple Attempts

You’ve entered your BitLocker PIN or recovery key several times, and now you see a rate limit err...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes