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 9.5xxxx. How do I install the RAID driver without it trying to erase my existing data?