Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run git pull or git merge and get:

fatal: refusing to...

How to Fix Windows 11 Update Stuck at 0 Percent
You click Check for updates, and the progress bar sits at 0% for minutes or hours. This is a comm...

Fix Windows Defender Real-Time Protection Not Running
You open Windows Security and see a yellow warning: "Real-time protection is off." Or you...

How to Fix Nginx Redirect Loop from HTTP to HTTPS
If you're seeing an infinite redirect loop when trying to force HTTPS in nginx, the browser u...

Fix Git Push Rejected: Non-Fast-Forward Error
You try to push a commit to a remote repository and get: ! [rejected] main -> main (non-...

Fix VSCode Breakpoints Not Hit in launch.json
You set a breakpoint in Visual Studio Code, start debugging with a launch.json confi...