Shadow Copy 80042306 The Shadow Copy Feature Is Available In All Editions Of Windows 7, Vista- Business, Ultimate, Home, Premium?

The Shadow Copy feature is available in all editions of Windows 7, Vista- Business, Ultimate, Home, premium? - shadow copy 80042306

Who will get the chance, "snapshots of the operating system can Retrive lost or deleted documents in the system?" Who But I find this option. .. Thanks