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

Docker Desktop Engine Stopped on Mac M1: Fixes That Work

On Apple Silicon Macs (M1, M2, M3), Docker Desktop sometimes shows the error “Docker Desktop engi...

Docker Container Exits Immediately on Mac: Fixes

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

Git Detached HEAD: Practical Checklist and Fixes

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

Fix Windows Defender Error 0x800704ec: Real-Time Protection

If you see error code 0x800704ec when turning on Windows Defender real-time protection, the servi...

Fix npm install Permission Denied on Shared Hosting