So if your older scanner suddenly doesn’t work consider this: In 1709 if you did an in place upgrade, you retain the SMBv1 in your networking configuration. However because this is deemed very unsafe (and it is a risk to keep it enabled), Microsoft does a check to see if you are still using it. “In-place upgrades and Insider flights of Windows 10 Home and Windows 10 Professional do not automatically remove SMB1 initially. If the SMBv1 client or server is not used for 15 days in total (excluding the time during which the computer is off), they each automatically uninstall themselves.” So 15 days after SMBv1 on the client is not used, the system will send a dism command to disable SMBv1
Source : AskWoody:
