Evidently, shadow copy has been around for quite some time. I became aware of it at the beginning of Win7, but it has been possible since XP (though far more of a Server technology).
Win8 brings full Volume Shadow Copy to the desktop, and is one of the coolest features of MS’s newest OS.
System Restore is basically the basis for shadow copy, but on a full drive level. Shadow Copy is at the file level and allows prior file versions to be recovered.
XP and Vista supported System Restore and Windows Server of the same vintage supported Shadow Copy.
MS’s recent server 2008/12 and Windows 8 allow for shadow copies to be stored on a different location than the protected drive. XP/Vista/7 do not. This is a very nice feature and one that should not be dismissed.
Here are a bunch of links on the subject:
http://edgylogic.com/blog/vshadow-exe-versions/
http://technet.microsoft.com/en-us/library/cc788055.aspx
http://blogs.msdn.com/b/adioltean/archive/2004/12/14/301868.aspx
http://securityweekly.com/2012/10/volume-shadow-copies-the-los.html
http://superuser.com/questions/482155/creating-disk-snapshots-in-windows-7
http://code.msdn.microsoft.com/windowsdesktop/VShadow-Sample-f6dd3cae#content
FILES:
vshadow-versions
vssown
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