That was meant to read two ( 2 ) of the same drives. 1st drive has my OP system on it and the 2nd is used for storage. it all started this past Friday. I mis-spoke earlier. They both went out Friday. I could not find either in the device manager or the BIOS. After unpluging it for several hours the OP system drive came back but the storage drive is still not in the device manager or the BIOS. I wondering if the hard drive has failed or if it is some where and just not coming up. I am disabled and have taken a sleeping pill and I am going to bed now. I appreciate any and all help you can provide. I have never had a hard drive to fail before so I don't know what is going on. I am tired. I have fooled with this for several days and decided to see if I could get some help from people who know their stuff. Thank You.