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

Nginx 502 Bad Gateway: PHP-FPM Fix Guide

Seeing a 502 Bad Gateway error from Nginx usually means it can't reach PHP-FPM. This is common af...

Fix Docker Container Crash Loop with Exit Code 1

You start a Docker container and it immediately stops, then restarts, stops again—the classic cra...

How to Fix Windows Update Stuck on Checking for Updates

If your Windows Update has been stuck on 'Checking for updates' for more than 15 minutes, you're ...

How to Fix 'Remote Desktop Command Not Found' Error

Checklist to Enable Windows Security Auto Start

If Windows Security (formerly Windows Defender) doesn't start automatically after you log in, you...