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

Fixing Cloudflare Wildcard Subdomain Proxy Errors

If you've set up a wildcard DNS record (e.g., *.example.com) in Cloudflare and a...

Checklist for Nginx Configuration Test Failure

When you run nginx -t and get a failure, the server won't reload or restart. Thi...

How to Fix Nginx Upstream Connection Refused on Port 80

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

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...

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

This error usually means Windows Update doesn't have pe...

Fix VS Code IntelliSense Not Showing Suggestions

You're typing code in VS Code, expecting autocomplete suggestions, but nothing appears. This ...