Physically disconnect the RAID drives from the system during the installation of Windows. Have the hard drive you install it on be the only drive Windows will see. This will cause it to take drive letter C:, if that's of any importance to you. Otherwise it will likely give drive letter C: to the RAID array. Not a big deal to everyone but a few don't like that. Once Windows is fully installed and boots satisfactorily, reconnect the RAID drives. Windows should find the new hardware and be access the data just fine. Make sure you back up the data on that array, however, as running RAID O is for those who like living on the edge. Good luck.