While Windows Server 2012 allows you to enable and disable SMB based on versions, SMB2 and SMB3 share the same protocol stack and as such must be enabled/disabled together.
To view the current state of the SMB Server protocol configuration:
To disable SMB1 for SMB Server:
To disable SMB2/SMB3 for SMB Server:
To enable SMB1 for SMB Server:
To enable SMB2/SMB3 for SMB Server:
