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

How to Set Up Windows Search in a Ubuntu VM

If you run a Windows virtual machine inside Ubuntu (using VirtualBox, VMware, or KVM) and need Wi...

How to Fix Windows Security Auto Start Disabled

If you notice that Windows Security (formerly Windows Defender) isn't starting automatically with...

How to Fix Windows Update Access Denied Error in Command Prompt

Fix Windows Update Token Expired Registry Error

If you see a 'token expired' or 'Token Expired' error when checking for Windows updates, the issu...

How to Fix OpenVPN Connection Failed on Windows 10

OpenVPN connection failures on Windows 10 usually show a log message like 'Connection failed' or ...

Windows Defender 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...