Windows 7 includes 13 additional sound schemes. However, later was removed in Windows 8. Only Vista/7/8 Sound scheme and this folder: C:/Windows/Media was retained, and replaced by new alarm tones, ringtones, Background and Foreground sounds.
This included 13 extra sound schemes, not found in any version of Windows(ex. Windows XP NT version 5.1, Windows 8 NT version 6.2).