- Open Registry Editor. (Click Start, click Run, type regedit, and click OK.)
- Locate the registry key: HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
- Set the DontDisplayLastUserName value to 1.
(Set the value to 0 to display the last logged-on user name.)
If the DontDisplayLastUserName value doesn’t exist, create it using the following information:
- Name: DontDisplayLastUserName
- Type: REG_SZ
- Data: 0 (Display the last user name), 1 (Don’t display the last user name)