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

Fix Windows Defender Real-Time Protection Stuck Off

You try to enable real-time protection in Windows Security, but it either stays grayed out or rev...

Windows Terminal Checklist for Ubuntu Installation

You're trying to run Ubuntu in Windows Terminal, but it's not working as expected. This checklist...

Fixing Command Prompt Authentication Failed Access Denied

You're running a command in Command Prompt and get hit with "Authentication failed" or "Access de...

How to Fix '404 Not Found' File Path Errors in CMD

Fix Windows Defender Blank Screen After Update

After a recent Windows update, you may open Windows Security (Windows Defender) and see a blank w...

Fix OneDrive 404 Not Found & File Access Denied Errors

You try to open a file in OneDrive and see a 404 Not Found message, or you get an Access Denied e...