which drive has the os installed. it cannot be installed in removable drives. what OS? if oem computer, what is the full computer model? did it just stopped working or did you make any changes to the harddrive config and hasn't worked since?
Um so I have 3 hard drives 2 are inside one is 1TB and the other is 500gb. The last hard drive is in a removable bay in the front of the computer. When the pc boots up it boots with the 500gb one but it just gives me a flashing line. Same happens with the 1TB. I'm guessing the " Removable Dev " in the Bios is the removable hard drive at the front. When I boot it from that it just gives me a boot0 error which someone previously told me that it wasn't detecting the drive. I have opened the pc and taken it out but I don't see anything that plugs in. I'm just trying to get this thing to work if not so I can get a new copy of windows to stop all this stress.

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