How to Hide User Accounts from the Welcome Screen in Windows 7 and Vista

1. Click Start.
2. In the Search field, type regedit and press Enter.
3. Locate the following registry key: HKEY_LOCAL_MACHINE\Software \Microsoft\Windows\ CurrentVersion\Policies \System.
4. In the right pane, double click the DontDisplayLastName and set its value to 1.
5. Click OK to confirm.
6. Restart the computer for the change to take effect.

If the above hack doesn’t work, try this:

1. Go to your Windows registry and locate this key: HKEY_Local_Machine \SOFTWARE\Microsoft\ Windows NT\CurrentVersion\ SpecialAccounts\UserList
2. Now, right-click the UserList folder located on the left pane and from the menu, select New – DWORD (32-bit) Value
3. Name the new DWORD as the username you want to hide and click OK.
4. Restart the computer for the changes to take effect.
5. Upon restaring your computer, you should see that the account you wanted to hide won’t disappear on the welcome screen!