Checklists for software errors, setup, and tool workflows.

Fix Windows Update Stuck on Checking for Updates on Mac

If you're running Windows on a Mac via Boot Camp or a virtual machine (Parallels, VMware Fusion, ...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

How to Fix Windows Update Error 0x80070643

You're trying to update Windows, but error 0x80070643 stops the process. This usually means the u...

Fix Windows Defender Invalid Configuration Error

You may see an error like “Invalid configuration” when opening Windows Defender or trying to run ...

How to Set Up Command Prompt Offline in Windows 10

If you need to set up Command Prompt on a Windows 10 machine that has no internet access, the pro...

Fixing 'Remote Desktop Command Not Found Permission Denied'

You try to run a remote desktop command like xfreerdp or rdesktop and g...