Checklists for software errors, setup, and tool workflows.

Fix Windows 11 Installation Assistant Stuck at 99% in Safe Mode

If you're running the Windows 11 Installation Assistant in Safe Mode and it gets stuck at 99%...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

How to Reinstall Windows Security App (Microsoft Defender)

If the Windows Security app (Microsoft Defender) is missing, crashing, or not opening, reinstalli...

Cloudflare SSL Full Strict Configuration Checklist

If you see 'This website is not available' or a redirect loop after enabling Cloudflare S...

Fix Chrome Hardware Acceleration Black Screen on Laptop

If your laptop screen goes black when using Chrome, especially during video playback or scrolling...

Fixing Nginx Upstream Connection Refused on Port 443

You see "upstream connection refused" in your Nginx error log when proxying requests to p...