I want to try Vista ( Ultimate ) so I have installed it on a partition next to Win XP PRO SP3. Previously I used to use a prgram called XACT copy to make an identical copy of my entire hard disk with OS all the programs & settings & all the data. If something went wrong with primary hard drive, I can switch to the backed up copy in less than 2 minutes & ready to use. But now XACT copy does not work with Vista & they have not come up with a Version for Vista. Is there a way to do the same thing with a dual boot system ? ( i.e. make an exact copy of the whole hard drive with both OS' & data ? ) Thank You.