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

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix OneDrive Sync Port Already Allocated Error

If you see "Port already allocated" when starting OneDrive sync, it usually means another process...

Chrome Remote Desktop Connection Checklist

Chrome Remote Desktop is a solid tool for accessing another computer, but connections can sometim...

Fix Windows Defender Version Mismatch Not Updating

If Windows Defender shows a version mismatch and refuses to update, you might see errors like "Yo...

Fix Outlook 404 Not Found Error in Microsoft 365

You open Outlook in Microsoft 365 and see a '404 Not Found' page. This usually means Outlook can'...

Fix Outlook 502 Bad Gateway Error After Update

After a recent Outlook update, you might see a '502 Bad Gateway' error when trying to send or rec...