Remove User Account From Logon Screen

1. Regedit
2. HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
3. Right click on the right pane and select New > Key
4. Enter the value: SpecialAccounts
5. Select SpecialAccounts that was just created and then right click on the right pane and select New > Key
6. Enter the value: UserList

7. On the left pane mark User List and then Right click on the right pane and select:
New  > DWORD (32-bit) Value
8. Set the value of the key to the user account name (i.e : share) and click OK
If you have more user accounts that you want to disappear from the logon screen, please repeat steps 7, 8