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

WireGuard Handshake Failure: Configuration Check Guide

You've set up WireGuard, but the handshake keeps failing. The tunnel won't establish, and you see...

Fix Windows Defender SSL Certificate Errors from Antivirus Interference

You might see SSL certificate errors in your browser or applications even when the certificate is...

Fix 502 Bad Gateway in Windows Terminal Proxy Config

If you see a 502 Bad Gateway error in Windows Terminal, it usually means your proxy ...

How to Enable Windows Defender When It Keeps Crashing

If Windows Defender keeps crashing or won't stay enabled, you're not alone. This usually happens ...

How to Fix Windows Update Module Not Found Error

If you see "Windows Update module not found" or a similar error when trying to update Windows, it...

OneDrive Invalid Configuration Sync Issue Fix

Understanding the Problem

You open OneDrive and see an error like "Invalid configuration"...