Iím using Windows Vista SP1 64bit OS. Since last two days I was trying to find out how can I regress, revert, or go back from a "RAID-Ready" or even AHCI setup to a plain old IDE setup. Finally I came through a Microsoft article describing the same here http://support.microsoft.com/kb/922976 for going from IDE to AHCI. Well thatís fine, but is there any way going reverse, I mean from AHCI to IDE ? I dint found anything for this on internet as well hence came here for you guys help.