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

Command Prompt Network Error Checklist

When you run a command like ping or tracert in Command Prompt and get a...

VMware Network Adapter Disconnects on VM Power On

You power on a virtual machine in VMware Workstation or vSphere, and the network adapter immediat...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Docker Desktop Stuck on 'Starting' Forever? Here's How to Fix It

You click the Docker Desktop icon, the whale icon appears in the system tray, and then... nothing...

Fixing Windows Defender Authentication Failed Permission Denied

You try to run a Windows Defender scan or update, but get an error like "Authentication f...