Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Real-Time Protection Not Running

You open Windows Security and see a yellow warning: "Real-time protection is off." Or you...

Fix Nginx Upstream Connection Refused Error

If you see upstream connection refused in your Nginx error logs, it means Nginx trie...

Fix npm install Permission Denied in VS Code Terminal

When you run npm install in the VS Code terminal and get a permission denied error, ...

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix Windows Update Error 0x80070002 Due to Network Issues

If you see Windows Update error 0x80070002, it often means the update files are missing or corrup...