hi guys, im at my wits end on this problem i'm trying to install windows vista 64-bit on a wd2500aaks. i have installed windows on the hdd several times in the past. for some reason, the installation process will no longer sense this hdd. currently i have windows installed on my 2tb hdd, and want to make a back-up install on this 2500aaks(this drive used to be my main drive). both hdds use the same driver so im at a loss as to why the installation process will not see it. i've tried installing from inside windows as well as from boot up. my current windows installation sees the drive just fine. i have tried putting the sata drivers on a cd, but the installation process just says that the drivers dont apply to any installed hardware. i have also tried letting windows get updates from online during the install process, to no avail. i've reset the cmos, undone my oc, tried installing with onlyl 2gb of ram, swapped cables, swapped ports on the mb, all to no avail. any suggestions? EDIT: the current windows installation see's and uses this drive just fine. i have tried deleting the partition and reformatting i have tried un-plugging my current main drive.