How do I disable SMBv1 protocol?
To disable SMBv1 on Windows 8.1 and Windows 10:
- In Control Panel, select Programs and Features.
- Under Control Panel Home, select Turn Windows features on or off to open the Windows Features box.
- In the Windows Features box, scroll down the list, clear the check box for SMB 1.0/CIFS File Sharing Support and select OK.
Should I disable SMBv1?
SMBv1 is an old version of the Server Message Block protocol Windows uses for file sharing on a local network. If you’re not using any of these applications—and you probably aren’t—you should disable SMBv1 on your Windows PC to help protect it from any future attacks on the vulnerable SMBv1 protocol.
What will disabling SMB1 break?
Disabling SMBv1 without thoroughly testing for SMBv1 traffic in your environment can have unintended consequences, up to and including a complete suspension of all network services, denied access to all resources, and remote authentication failures (like LDAP).
Should I enable SMB1?
SMBv1 vulnerability is dangerous for larger networks. A modest home LAN should avoid SMBv1, but an old device disconnected from the internet cannot be used as an entry-point by an attacker. For more information, see : Microsoft’s advisory Stop using SMB1.
Is there a way to stop using SMBv1?
From Microsoft blog Stop using SMB1: When using operating systems older than Windows 8.1 and Windows Server 2012 R2, you can’t remove SMB1 – but you can disable it: KB 2696547- How to enable and disable SMBv1, SMBv2, and SMBv3 in Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, and Windows Server 2012
Why do I have SMBv1 running on my server?
As far as I can tell SMBv1 is being used to handle the login functions from users machines so that they can access the file server. When I create a firewall rule on the server to block all SMBv1 traffic it makes it so that no one can log on to the file server.
Can you remove SMBv1 from Windows Server 2012?
When using operating systems older than Windows 8.1 and Windows Server 2012 R2, you can’t remove SMB1 – but you can disable it: KB 2696547- How to enable and disable SMBv1, SMBv2, and SMBv3 in Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, and Windows Server 2012 Was this post helpful? Thanks for your feedback!
Is there a way to see if I have SMBv1?
Obviously the scan can’t show is something is using it. That would require a local agent, but the easiest way would to be have open files report open (depends on the OS). Another way is just to disable it, or block it with Firewall and see what breaks.