How to hide an user account in Windows 8.1 & Windows 10 [Updated]

This might work in previous versions of Windows, but I've only tried it in Windows 8.1 and Windows 10.

I've got a MFP (multi-function printer) from Dell that I use to scan directly to a shared folder on my computer. For this I use a seperate user that has share/write permissions on a shared folder. I don't want to show this user in the Windows 10 list, so here is how to hide it:

Start regedit and navigate here:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

  1. Create a new sub-KEY under Winlogon named 'SpecialAccounts'
  2. Create a new sub-KEY under SpecialAccounts named 'UserList'
  3. In UserList, create a DWORD (32-bit) and give it the name of the user account. Leave the value at 0.
  4. Log out or Reboot
Update: Verified to work in Windows 10.