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

Setup Cloudflare SSL Flexible to Avoid Redirect Loop

If you've enabled Cloudflare's Flexible SSL and started seeing redirect loop errors (ERR_TOO_MANY...

Fix Windows Security 502 Bad Gateway Error

If you're seeing a "502 Bad Gateway" error when opening Windows Security (also known as Windows D...

Fixing Certbot Certificate Renewal Failed Error Code

You run certbot renew and get an error code instead of a renewed certificate. This i...

Firefox Not Responding While Other Browsers Work: Fix

If Firefox is unresponsive—freezing, crashing, or not loading pages—but other browsers like Chrom...

How to Fix Cloudflare 522 Error with Nginx

If you're seeing a Cloudflare 522 error, it means Cloudflare successfully connected to your origi...

PowerShell Command Not Found but Works in CMD