WannaCry and Co. suggest that it’s time to remove some old protocol, and SMB1 it’s one of that.
Here you find a script that is usefull for that; run it as admin rights:
This batch call a powershell script (check that all the scripts is stored on the same folder and that the execution path is where you store the scripts)
I used a batch to bypass the powershell signature and make easier for helpdesk to runas as admin.
For disable it with GPO, check this: