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

Task Scheduler Backup Configuration Tips

If your scheduled backups aren't running, run inconsistently, or fail silently, the issue is ofte...

How to Fix Abnormal Memory Usage in CMD on Windows

Fix Windows Defender Real-Time Protection Off via Registry

If you see "Real-time protection is off" in Windows Security and the toggle is grayed out or keep...

PowerShell Refresh Token Expired: Quick Workarounds

When using PowerShell with Azure, Microsoft Graph, or other cloud services, you may encounter a '...

Windows Security 404 Not Found: Setup and Fix Guide

When you open Windows Security (formerly Windows Defender) and see a blank page or a '404 Not Fou...

Fix Windows Security Error 0x80070643 on Ubuntu Dual Boot

If you see error code 0x80070643 when running Windows Security or Windows Update on a dual-boot s...