
Fix 'Port Already Allocated' Error in Windows Defender on Windows 10
You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...

You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...

You see a message that the BitLocker service is unavailable when you try to manage encryption, op...

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

If Windows Search feels slow or returns incomplete results, the indexing settings are often the c...

If you see error 0x80072efd when trying to activate Windows, the message often says something lik...

If you've signed into Windows with your Microsoft account and notice that Defender settings—like ...