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

Fix Microsoft Store 502 Bad Gateway Due to Network Settings

You open the Microsoft Store and see a '502 Bad Gateway' error. This often means your device cann...

Fixing 'Remote Desktop SSL Certificate Not Trusted' Error

When you try to connect to a remote computer using Remote Desktop (RDP) and see a warning that th...

Checklist for Fixing Windows Activation Token Expired

If you see a message saying your Windows activation token has expired, it usually means the syste...

Fix Windows Defender Permission Denied Errors

When Windows Defender reports a "Permission Denied" error, it usually means the software cannot a...

Fix Windows Security Authentication Error 0x80070035

Fix Windows Security Connection Refused Error via Registry

If you see a connection refused error when opening Windows Security (Windows Def...