If you enable this policy setting the recent programs list in the start menu will be blank for each new user.If you disable or do not configure this policy the start menu recent programs list will be pre-populated with programs for each new user.
Policy path:
Start Menu and Taskbar
Scope:
User
Supported on:
Windows Server 2008 Windows 7 and Windows Vista
Registry settings:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer!ClearRecentProgForNewUserInStartMenu
Filename:
StartMenu.admx