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

How to Change Remote Desktop Port in Registry

If you need to change the default Remote Desktop (RDP) port (3389) to improve security or avoid c...

Fix Chrome Blank Screen When Switching Profiles

If Chrome shows a blank screen (white or grey) after you switch user profiles, you're not alone. ...

Outlook Auto Start Not Working in Office 365: Fixes

You expect Outlook to open automatically when you sign into Windows, but it stays closed. This is...

Fix Windows Defender Failed to Start: Registry Repair Steps

When you see “Windows Defender failed to start” or “Windows Defender service terminated unexpecte...

Fix GitHub Actions Docker Push Permission Denied

Fix Windows Update Error 0x8024402c Permission Denied

You see error 0x8024402c when checking for updates, often accompanied by “Permission denied.” Thi...