I am upgrading from Windows 7 32-bit to 64 bit. I have an OS drive and a RAID 1 data drive array consisting of two 1.5TB drives. I'm wondering how it works when I install a new OS and try to attach the RAID 1 data drives. It is using Intel Rapid Storage 9.5x and the ICH10R chip to control the SATA drives. How do I install the RAID driver on my OS drive without it trying to erase my existing data on my RAID1 drives? Can I install the RAID drivers and the install W7 64 bit and then after the install just plug in the two drives?