
How to Fix Windows Defender Firewall Blocked App
You try to open an app, but it either won't start or can't connect to the internet. A common caus...
Software troubleshooting desk

You try to open an app, but it either won't start or can't connect to the internet. A common caus...

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

If you see a "502 Bad Gateway" error when running Windows Update, it often points to a problem wi...

You try to open a file, run a program, or access a folder, and Windows stops you with an 'Access ...

When you try to open Windows Security or access its features (like virus & threat protection), yo...

You're connected to a remote desktop session, and suddenly you see "Your remote desktop session h...