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

Fix Nginx Config Test 'Permission Denied' Error

Running nginx -t and seeing 'permission denied' can stop you from reloading ...

How to Fix Cloudflare SSL Full Strict Self-Signed Certificate Error

Git Merge Conflict: How to See the Diff Between Versions

When you run git merge and hit a conflict, Git pauses and marks the conflicting file...

Fix Windows 11 Installation Assistant Stuck at 99% Due to Network Issues

You're running the Windows 11 Installation Assistant, it downloads happily up to 99%, then si...

Bluetooth Troubleshooting Checklist for Windows 11

Bluetooth on Windows 11 can be unreliable. If your device won't pair, keeps dropping, or does...

How to Fix Windows Update Error 0x80070002 with a Clean Boot

If you see error 0x80070002 when running Windows Update, it usually means a file or resource that...