Whichever drive i am on, it says c: the d: and e: are dvd and blueray drives. Don't matter which hard drive i select. Thats all i see. I would think c: would be one drive and d: the other but no. Maybe because there are no partitions on the same drive? Two separate drives give the same c: as they only see the current drive not a partition? That is my guess, But now back to the question, if one gets a bug, can it affect the other drive? I would say no, but then they are still installed on the same motherboard....