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

Fix DNS Probe Finished NXDOMAIN with VPN Issues

When you see 'DNS probe finished NXDOMAIN' in your browser while a VPN is active, it mean...

Fix Virtual Environment Not Activating in Terminal

Why Your Virtual Environment Won't Activate

You open a terminal, navigate to your pro...

Windows Defender Real-Time Protection Troubleshooting Checklist

If Windows Defender real-time protection fails to turn on or keeps turning off, you may see warni...

VS Code Terminal Blank Screen: Quick Fixes

You open the integrated terminal in VS Code, but instead of a prompt, you get a blank or black sc...

Git Detached HEAD: Practical Checklist and Fixes

You see a message like 'You are in 'detached HEAD' state' when checking out a com...

Fix Nginx 502 Bad Gateway Docker Permission Denied

When running Nginx as a reverse proxy in a Docker environment, a 502 Bad Gateway error often poin...