Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing a '502 Bad Gateway' error when opening Windows Defender, it usually means a netw...

If you open Task Scheduler and see a blank white or gray screen—no tasks, no menus, just emptines...

You type a query into the Start menu or File Explorer search bar, and instead of results, you see...

You open Windows Security and see that the antivirus is off, with no obvious way to turn it on. T...

When you try to run a PowerShell script and see 'cannot be loaded because running scripts...

Fix 'pip install no matching distribution found' for Python 3.9
When you run pip install somepackage and get an error like ERROR: Could not fi...