Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're new to the Windows Command Prompt, the default black-and-white window can feel a bit ba...

If Windows Update is stuck, failing, or consuming excessive disk space, clearing the Softwa...

Fix CMD Service Unavailable Due to Group Policy
Situation
You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix PuTTY Connection Refused: Check SSH Service
When you see 'Connection refused' in PuTTY, it usually means the SSH server on the remote machine...

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

Fix 'Windows Defender Not Recognized' Error in Command Prompt
When you type MpCmdRun or Windows Defender in Command Prompt and see