Open Start, type: regedit
Right click Regedit
Click Run as administrator
Navigate to the following key
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Creative\S-1-5-21-826134325-3229497062-2753576501-1001
this will be your first user, if you got more change on all of them:
Double click LockScreenOptions
Change the Value data to 4
Click OK
Exit the Registry then restart.