Checklists for software errors, setup, and tool workflows.

Fix Blue Screen Loop After Windows 11 Update

You install a Windows 11 update, restart, and then get stuck in a blue screen loop—the system cra...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

How to Reinstall Windows Security App (Microsoft Defender)

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

Fix Docker Nginx 502 Bad Gateway Upstream Error

When running Nginx as a reverse proxy in Docker, a 502 Bad Gateway error with 'upstream' ...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Docker Prune Not Freeing Enough Space: Practical Fixes

You run docker system prune -a expecting a big space recovery, but the freed space i...