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

Fix Windows Explorer Restarting After Crash

If Windows Explorer (explorer.exe) crashes and then keeps restarting, you may see the desktop fla...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Cloudflare Origin Certificate Setup for Apache

If you use Cloudflare's proxy (orange cloud), you can set up an origin certificate to encrypt...

Fix Cloudflare SSL Full Strict Error 526

If you see error 526 in your browser when using Cloudflare with SSL set to Full (Strict), it mean...

Fix Python Dependency Conflict Error Code 1