How to hide user accounts on Windows 7/Vista logon

I found user accounts on Windows logon after setting up the GIT service on my Windows box.
However, they are important to run GIT. So, I want to hide them.

1. Run [regedit]
2. Find the following key with [regedit]
   HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
3. Add a new key under [Winlogon]
1. Click right button on [Winlogon]
2. Click [New]
3. Click [Key]
4. Type [SpecialAccounts]
4. Add one more new key under [SpecialAccounts]
1. Click right button on [SpecialAccounts]
2. Click [New]
3. Click [Key]
4. Type [UserList]
5. Add [DWORD (32bit) Value]s
1. Click right button on right panel of [UserList]
2. Click [New]
3. Click [DWROD (32bit) Value]
4. Type user account that you want to hide
• Repeat this 4 steps as many as accounts that you want to hide
• Make sure it is 0(zero). If this value is 1, you can see the user account on logon