"Microsoft next will be removing the SMB1 binaries, and that both Windows and Windows Server will no longer include the drivers and DLLs of SMB1. Microsoft will

"Microsoft next will be removing the SMB1 binaries, and that both Windows and Windows Server will no longer include the drivers and DLLs of SMB1. Microsoft will provide an out-of-band, unsupported install package for users that still need to connect to old factory machinery, medical gear, consumer NAS and other equipment that still requires SMB1, however." It's good for security, but bad for backward compatibility.