Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you notice your system slowing down and Task Manager shows Microsoft Defender Antivirus Servic...

You try to open a file on a BitLocker-encrypted drive and get an error saying the file is locked ...

If you see a 502 Bad Gateway error when opening Windows Security, it usually means the app can't ...

If you see an error saying the Windows Activation service is not running, your system may not be ...

When you run a PowerShell script or cmdlet and see an error like Could not load file or ass...

Fix Windows Security High Memory Usage
If you notice Windows Security (formerly Windows Defender) using excessive memory—sometimes hundr...