Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If the Windows Security app isn't opening, showing errors, or behaving oddly, resetting its s...

You try to install a Python package with pip, and get an error like error: externally-manag...

Fix Angular Breakpoints Not Hit in VS Code
You set a breakpoint in an Angular component or service, start debugging in VS Code, and the brea...

Fix Windows Update Error 0x800f081f After SFC ScanNow
You run sfc /scannow to check system files, and it completes successfully. But when ...

Git Merge --allow-unrelated-histories: When and How to Use It
You run git merge and get an error: fatal: refusing to merge unrelated histories...

Fix NET::ERR_CERT_AUTHORITY_INVALID via Chrome Enterprise Policy
If you see NET::ERR_CERT_AUTHORITY_INVALID in Chrome on a managed device, the is...