Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

Fix Git Clone Connection Timed Out After 30 Seconds

Fix Git Clone Connection Timed Out After 30 Seconds

When you run git clone and see connection timed out after 30 seconds, i...

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish

You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...

Chrome Certificate Error Invalid Authority: Diagnosis Checklist

Chrome Certificate Error Invalid Authority: Diagnosis Checklist

When Chrome shows NET::ERR_CERT_AUTHORITY_INVALID and refuses to load a site, it...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

When Git reports SSL certificate problem: unable to get local issuer certificate, it...

Fix Missing Taskbar Icons on a Second Monitor

Fix Missing Taskbar Icons on a Second Monitor

If you've connected a second monitor and the taskbar icons aren't showing up on it, you&#...

How to Change npm Directory to Avoid Permission Denied

How to Change npm Directory to Avoid Permission Denied

If you've seen "EACCES: permission denied" when running npm install -g, ...