
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...

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

You open Windows Security and see that real-time protection is off, even though you didn't change...

You see the error "Chrome profile authentication failed" with code 0x800704cf when trying to sign...

You open Windows Security to check your protection status, but the app just sits on a loading spi...

When you try to open or edit a file in Windows Terminal and see "The file is locked by the system...

You start Chrome from the command line and get an error that the port is already allocated. This ...