I have a Dell Inspiron computer desktop I purchased in 2011. A few months ago I started getting this message when I tried to boot up: no boot device available press enter key to retry I tried using the Dell recovery disk to boot but that just brings me to a screen where I get the options to restore to a system backup or restore to factory. Neither option works when I pick it because then it tells my hard drive isn’t big enough. If I choose to run diagnostics (F12) that tells me it can’t detect the hard drive. any idea what the problem most likely is?