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

Fix Windows Security Service Failing to Start on Startup

If Windows Security (Windows Defender) fails to start when you boot your PC, you may see a warnin...

Fix Python venv Activation Script Not Running in PowerShell

You create a Python virtual environment, run the activation script, and nothing happens—or you se...

How to Reactivate an Expired Windows License

If you see a "Windows license expired" or "Windows activation required" watermark, your copy of W...

How to Fix PowerShell Version Mismatch Error

Fix VS Code Extension Host Crashing on Startup

If Visual Studio Code opens but then immediately shows an error that the extension host has termi...

Fix BitLocker 'Cannot Access Drive Permission Denied' Error

Understanding the Error

You see 'Cannot access drive. Permission denied' when trying to o...