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

How to Fix Command Prompt Not Opening in Windows

When Command Prompt (cmd.exe) refuses to open—either by clicking, typing 'cmd' in Run, or via the...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

Fix Windows Search SSL Certificate Error via Registry

If you see an SSL certificate error when using Windows Search (e.g., searching in Outlook or File...

Fix Windows Search Auto Start via Registry

If Windows Search starts automatically every time you boot your PC and you want to stop it (or en...

Microsoft Teams Camera Black Screen: Practical Fixes

You join a Teams meeting and your camera shows a black screen. Your video doesn't appear for othe...

How to Restore BitLocker Backup Without Recovery Key

If you've lost your BitLocker recovery key and need to access your backup data, you're in a tough...