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

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

How to Fix Windows Security Real-Time Protection Not Turning On

If you see that Windows Security's real-time protection is stuck off and won't turn on, you're no...

Fix Chrome Profile Permission Denied Error on Ubuntu

You try to launch Google Chrome on Ubuntu and get an error like 'Permission denied' or 'Failed to...

Fix Windows Security Network Error 0x800704cf

When you open Windows Security and see error 0x800704cf, it usually means the app can't reach its...

Fix Windows Defender Crashing After Update Error 0x800704ec

If Windows Defender crashes or fails to start after a recent update and you see error 0x800704ec,...

Fix Windows Security Dependency Conflict Error – Setup Guide

You're installing or updating Windows Security (formerly Windows Defender) and get an error about...