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

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...

Windows 11 Blue Screen After Update: Hardware Issue Fixes

You updated Windows 11, and now you get a blue screen. If the error mentions hardware, it's o...

Fix Windows 11 Blue Screen After Update Uninstall Problem

You uninstalled a Windows 11 update to fix another issue, but now you're stuck with a blue sc...

Fix Cloudflare Origin Certificate Mismatch Errors

If you see 'Origin Certificate Mismatch' in Cloudflare or browser warnings, it usually me...

Fix 'Git Remote Origin Already Exists' in VS Code