I am running Windows 7 on my Dell Dimension 5150. A few days ago my computer was stuck in the "logging off" screen and I had to cold boot to shut it down. When I restarted, I get a "Drive 1 not found: Serial ATA, SATA-2" error and an "error loading operating system". I cannot boot into safe mode at all. I ran hard drive diagnostics and get "Drive 0: Fail. Return Code: 7, Drive 1: No device". I have tried just about every solution to this online aside from replacing the battery or hard drive. I'm really hoping it's not the hard drive since I have a few files on there I cannot replace (most is backed up onto EHD). I've checked all of the cables, tried boot to utility partition, tried rearranging the boot order, booted to a Win 7 installation CD (but I'm not sure what drive my OS is on, it gives me a RAW error with drive C: for chkdsk and it ran a chkdsk for D: but still won't boot up). In setup, all drives are on (I tried turning off drive 0 at one point because it was giving me a "Drive 0 not found" at first but now that message is gone and I turned it back on). I have no idea where to go from here. Do I replace the hard drive cable to see if it's that? Try replacing the power supply? Any help would be greatly appreciated. Thanks!
Edited by ibleedart, 19 May 2016 - 12:42 PM.