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

Fix Windows Security App Not Starting on Windows 11

You click the Windows Security icon or try to open it from Settings, but nothing happens. The app...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

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

When you run git push and see “rejected – non-fast-forward”, it means your local bra...

How to Fix Cloudflare 522 Error: Check Your Origin Server

If you're seeing a 522 Connection Timed Out error in your browser when visit...

Fix Node.js Out of Memory When Building React Apps

When building a React app, you might see a fatal error like FATAL ERROR: Ineffective mark-c...