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

Command Prompt Not Responding? Fix Black Screen Issue

You click on Command Prompt, but instead of a working terminal, you get a black screen that doesn...

Fix 'Port Already in Use' Error with Windows Defender Firewall

You try to start a local service or application, and it fails with an error like 'port already in...

Unlock BitLocker Drive from Command Line Without Recovery Key

If you have a BitLocker-encrypted drive that is locked and you need to access it without the grap...

How to Fix GitHub Actions Permission Denied Errors

If you see a "permission denied" error in a GitHub Actions workflow run, it usually means the wor...

Fix Windows Defender Module Not Found After Antivirus Uninstall

After uninstalling a third-party antivirus program, Windows Defender may fail to load its modules...

Fix Windows Terminal Permission Denied File Locked Error