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

How to Fix Windows Update Service Not Running

If Windows Update won't start or you see an error like "Windows Update cannot check for u...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer Certificate

Fix Windows Explorer Keeps Restarting in Safe Mode

If you boot into Safe Mode only to see Windows Explorer crash and restart over and over, the prob...

Fixing Nginx Redirect Loop Configuration Issues

You set up an Nginx redirect but now the browser says the page isn't redirecting properly – y...

How to Fix Cloudflare 521 Error Due to Proxy Issues

If you see a Cloudflare 521 error, the message usually says something like “Web server is down.” ...

Cloudflare Error 521: Web Server Down Checklist

Cloudflare error 521 means your origin web server refused the connection. This is not a Cloudflar...