Checklists for software errors, setup, and tool workflows.

Fix Nginx Upstream Connection Refused & Upstream Not Found

When you see upstream connection refused or upstream not found in your ...

Fix Windows Update Error 0x80070005 by Repairing Registry Permissions

If you see error 0x80070005 when running Windows Update, the problem is often a permissions issue...

VS Code Git Changes Not Detected After Clone: Fixes

You clone a repository, open it in VS Code, but the Source Control panel shows no changes—even th...

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...

Fix Windows Update Service Not Running with Malwarebytes

If Windows Update fails with error messages like "Service not running" or "Windows Up...

Docker Container Exits Immediately in Foreground Mode: Fixes

You run a Docker container with docker run -it myimage and it exits immediately. The...