Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see EACCES: permission denied when running npm install -g or oth...

When you see a Windows Security dependency conflict error code, it usually means a required servi...

You're trying to install or update Visual Studio, but the installer fails with error code 0x80070...

If Windows Search stops returning results, takes forever to find files, or shows no results at al...

You try to launch Chrome and get an error like “The profile appears to be in use by another C...

Windows Update Command Troubleshooting Checklist
Windows Update command-line tools like wuauclt, usoclient, and di...