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

Fix PowerShell DNS Error 0x8007274d: Practical Steps

WireGuard Handshake Not Completing: Practical Checklist

If your WireGuard tunnel is up but the handshake never completes, you'll see no data transfer and...

Windows Update Error 0x80070002 on Ubuntu: Fix Guide

If you're running Windows in a virtual machine on Ubuntu and getting update error 0x80070002, it ...

Fix Windows Defender Error 0x8007042c: Network & Setup Checks

You see error 0x8007042c when opening Windows Defender or during a scan. The message usually says...

Windows Defender Real-Time Protection Won't Turn On: Fixes

You open Windows Security, toggle real-time protection on, but it slides back to off. This is a c...

Fix Windows Defender Permission Denied When Scanning a Folder

You try to scan a folder with Windows Defender and see 'Permission Denied' or 'Access Denied'. Th...