Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You may need to enable the Windows Defender module in PowerShell if commands like Get-MpCom...

How to Fix 'npm command not found' on Mac
If you type npm in Terminal and see zsh: command not found: npm (or

Reset Windows Search Database in Windows 10
If Windows 10 search is returning no results, taking too long, or showing outdated files, the sea...

How to Fix Windows Update Stuck at 30% Migration
You're updating Windows and it gets stuck at 30% during the migration phase. This often happens w...

Fix Windows Defender Service Not Running
If you see "Windows Defender service not running" or a red warning in Security Center, the underl...

Fix Chrome Port Already Allocated Error (ERR_UNSAFE_PORT)
When Chrome displays an error like ERR_UNSAFE_PORT or a message that a port is alrea...