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

Windows Update Service Not Running: Registry Fix Guide

If Windows Update fails to run, the service may be disabled or corrupted. This guide covers regis...

Fixing Cloudflare 522 Errors with Load Balancer Setup

If you see a Cloudflare 522 error, the connection between Cloudflare and your origin server timed...

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

How to Reset Windows Search Index (Step by Step)

If Windows Search stops finding your files, returns old results, or uses high CPU, the search ind...

Fix Chrome Certificate Error: Invalid Authority with Proxy Settings

You open Chrome and see NET::ERR_CERT_AUTHORITY_INVALID on every site, even trus...