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

Fix Windows Update Clean Up Tool Not Working

You run Disk Cleanup, check "Windows Update Cleanup", but nothing happens—or the option is missin...

Windows Defender Real-Time Protection Rate Limit Error Fix

You may see a notification that Windows Defender real-time protection has a rate limit error, oft...

Fix Remote Desktop DNS Not Working After VPN Connection

You connect to your VPN, then try to RDP into a remote machine by hostname, but it fails. Pinging...

Fixing GitHub Actions Permission Denied for Git Commands

How to Fix Windows Update Access Denied Error

You click 'Check for updates' and see 'Access Denied' or 'Error 0x80070005'. This usually means W...

How to Fix RDP SSL Certificate Mismatch Errors

When you try to connect to a remote desktop and see an error like "The certificate is not from a ...