Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see an error saying Windows Security Center is missing or unavailable, it usually means th...

You might need to reset Windows Defender (now Microsoft Defender Antivirus) to its default settin...

If you open Windows Defender (now called Windows Security) and see only a blank white or black sc...

If Windows Update fails with errors like 0x80070002 or 0x800736B3, corrupted system files are oft...

If you see a rate limit error in Windows Terminal—often a message like 429 Too Many Request...

Fix Conda Environment Solve Failure with Pip Packages
When you run conda env create or conda install and the solver hangs or ...