I have a Gateway NE722 laptop , its only 1.5 yrd old , it was bought remanufactured on ebay. It always worked great then one morning it would not boot and displayed a error message : Default boot device missing or Boot failed. I have a hard time believing the hdd would crap out so soon but who knows. I don't know a ton about computers. I am able to access the setup utility, not sure if this is the same as bios.I changed the boot priority to Hdd as first but that did nothing, curiously on the "main" page it gas a D2D recovery and under "specific help" it gives directions for Acer disc-to-disc recovery via Alt +F10 key, tried thag but nothing, so not sure how to proceed, I do have a very similar pc, same NE722 with different features if that could help diagnose the problem without causing any damage I'm open to it. Thanks !!