
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...

You try to update Windows Defender, but it fails with error 0x80240022. This usually means Window...

After a recent Office or Windows update, you might see an error that your Outlook profile is from...

You enter your BitLocker recovery key, but Windows rejects it. This often points to a TPM (Truste...

If you recently reset Windows settings or performed a system restore and now BitLocker reports th...

You open Windows Security and see a "Connection refused" error when trying to update virus defini...