If you have a standard Windows 7 64-bit system, you don’t need this pack. If you have an “N” or “KN” edition, obtain the Feature Pack exclusively through Microsoft’s official channels—never from a generic "download" site.
If you are running a 64-bit version of Windows 7 and find that certain media-related functionalities are missing—such as Windows Media Player, the ability to play MP3 files natively, or record audio—you may need the Windows Media Feature Pack .