Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Security Real-Time Protection Stuck

Windows Security’s real-time protection can get stuck in an “on” or “off” state, sometimes refusi...

OneDrive Sync Failed: Configuration Error Repair Guide

When OneDrive throws a "sync failed to start" message tied to a configuration error, the app usua...

Fix Windows Defender Rate Limit Error Not Working

If you see a 'rate limit error' in Windows Defender and it's not working properly—scanning fails,...

Fix Microsoft Teams File Locked by Previous Session Error

You try to edit a file in Microsoft Teams and see a message that the file is locked by a previous...

Checklist for Fixing Windows Defender Command Not Found

When you run Get-MpComputerStatus or Start-MpScan and see "The ...

Fix OneDrive Not Signing In Due to Network Firewall
You try to sign in to OneDrive, but it fails with a network error. Often, a firewall—on your comp...