Dear Mahmoud et al: I have a year old HP dv7 laptop with a HDD that failed a week ago (I knew it was the HDD as I ran diagnostics from the boot menu and everything passed except the HDD which immediately failed). Wanting to get it going again I immediately went to my local supplier and got a new HDD (old one was 640gb, new a little smaller, 500gb, thinking I didn't really need all that room as I have 2 X 2tb external drives). I installed it and then did the same diagnostic test on it (passed), then ran the 5 DVD recovery discs I had made first thing when the machine arrived. Things appeared to go fine (the recovery program, with a Cyberlink logo, said "Install disc 2", then "3", etc until the end at disc 5) at first but when it tried to reboot, I got "No Bootable device". I tried running the discs again, same thing. Then I tried making a "repair/boot disc" from another win 7 machine I have, which went nowhere, then I searched and searched online, both HP's support site then generally, which eventually brought me to your site. Before downloading the ISO file (192mb) I tried the cmd line suggestions you gave, which didn't seem to work at first, but when in desperation I next turned on the machine and started to put a Linux (Ubuntu) setup disc in, suddenly I got an HP logo and screens that said it was installing software in preparation for "your computer's first use", which made me temporarily ecstatic - only to have my feelings dashed again when I got another message saying it would not boot. Then I downloaded your ISO file and burned it to CD, put it in the optical drive and once more crossed my fingers, trying the cmd line steps as outlined (eventually getting to the Nuclear scenario). I'm not exactly sure where it broke down (the first couple steps returned "operation completed successfully) as I'm no DOS jockey, but among the messages were "file not found" and "improper syntax" or "parameter" or something like that. I can try again (is nt60 for Vista of 7 or both?) but I think I need help (I subscribe to Albert Eintstein's definition of insanity - continuing to do the same thing with the same results WILL make me crazy). I realize this is probably not the first time this has been asked/answered, but I couldn't find this exact problem on the forum (I did look quite a while). Not that $9.75 is a huge gamble, but I would like to win at any cost short of buying a new machine. Any help (even if it directs me to previous solutions) would be greatly appreciated (HP Tech was no help - out of warranty). Thanks... dvalmore PS: What's the point of the Recovery discs if they don't work? Anybody?