Knowledge base for software setup, errors, and daily tool work.

Fix Windows Defender 404 Error in Command Prompt

When you try to run Windows Defender commands from Command Prompt and get a '404 Not Found' error...

Fix Infinite Login Loop via Command Prompt

You sign in to Windows, the desktop appears for a moment, and then you're back at the sign-in scr...

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 High PowerShell Memory Usage After Closing

You close PowerShell, but your system monitor still shows it using a lot of memory. This can slow...

Checklist to Clear and Rebuild Windows Update Cache

Windows Update can get stuck or fail with errors like 0x80070002 or 0x8024401c when the update ca...