
Fix 'Port Already in Use' Error with Windows Defender Firewall
You try to start a local service or application, and it fails with an error like 'port already in...
Software troubleshooting desk

You try to start a local service or application, and it fails with an error like 'port already in...

When you start a service or application and get an error like "Address already in use" or "Port i...

You open Outlook and see a message that your token has expired, often with an error code. This us...

After a Windows update, the Microsoft Store may fail to open, load slowly, or display errors like...

Windows Search can slow down or stop returning results when its service or index gets corrupted. ...

If you're stuck in a Windows Terminal login loop or your settings aren't syncing across devices, ...