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

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...

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 Bluetooth Service Not Running in Windows 11

You open Bluetooth settings in Windows 11 and see the toggle is grayed out, or your Bluetooth dev...

How to Fix Nginx Redirect Loop 302 Errors

You're seeing a 302 redirect loop in Nginx — the browser keeps bouncing between URLs until it...

How to Fix Cloudflare 522 Error: Origin Server Timeout

If you see a Cloudflare 522 error, it means your origin server didn't respond in time. This u...

Fix npm install Permission Denied After Node Update