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

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 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 Windows Security App Access Denied Error

When you open Windows Security (formerly Windows Defender Security Center) and see an 'Access...

Git Detached HEAD vs Attached HEAD: What It Means and How to Fix

If you've seen the message "You are in 'detached HEAD' state" while using Git...

Docker Container Exits Immediately on Mac: Fixes

You start a Docker container on your Mac, and it stops within seconds. The container exits immedi...

How to Fix Git Push Rejected Non-Fast-Forward Error