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

Windows Security App Not Opening: Practical Fixes

If the Windows Security app won't open—clicking the icon does nothing, or it crashes immediat...

Windows Defender Real-Time Protection Keeps Turning Off: Fixes

You notice the Windows Security icon in the system tray shows a yellow warning. Opening it reveal...

Fix Docker Volume Permission Denied for Postgres

Fix Windows 11 Blue Screen After Update Using SFC /Scannow

After a Windows 11 update, you might see a blue screen error on boot or during use. One common fi...

Docker Compose Env Variable Not Available in Container: Fix

You define an environment variable in your docker-compose.yml file, but when you run...

Fix VS Code GitHub Authentication Failed Error

You're trying to push or pull code in VS Code, but you see an error like Authentication...