One quick setting for Window Admins while running the Windows 7 image and even otherwise to disable the launch of first preference screen on the Windows Media Player 12.
Registry setting you need to modify to allow the first run to be disabled for all the users. This is best done via a GPO settings as this will over write the settings for all the users who log on the machine after its imaged or even when it is pushed down to the user.
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MediaPlayer\Preferences]
“AcceptedEULA”=dword:00000001
“FirstTime”=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsMediaPlayer]
“GroupPrivacyAcceptance”=dword:00000001
FreeBirD 