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

Windows Explorer Not Responding? Here's How to Fix It

Windows Explorer (now called File Explorer) freezing or showing "not responding" is a com...

Recover Lost Commits After Git Detached HEAD

You've made commits while in a detached HEAD state, and now you can't see them on any bra...

Fix Chrome Black Screen on Intel Graphics with Hardware Acceleration

If Chrome shows a black screen on an Intel graphics system, especially after an update, hardware ...

Fix Windows 11 Update Stuck at 0% with Service Not Running

You click Check for updates, see 0% for ages, and maybe an error like 'Windows Update service...

How to Fix Firefox Secure Connection Failed with VPN

You're using a VPN and Firefox suddenly shows 'Secure Connection Failed' on sites tha...

Checklist for Troubleshooting Nginx Permission Denied Errors

Understanding the Problem

When Nginx returns a 403 Forbidden or logs an error like ...