Boot file not found

my friend recently bought an ald pc. and at first it worked just fine, but now when he turns it on it says "boot file not found". (it's an ASRock am3+ motherboard) is it possible to fix it?

so he passed the bios post, only dont load the  operating system ? in this case, you can better reinstall windows.

look in the bios, if the harddrive gets recognized..

it was actually the bios file that he dein't have, and he bought a new mobo (asus m5a78l le). but thanks for the help anyway.

ah okay that i wasnt getting clear out of youre post.

yeah wenn he cant load the bios file, then you probabley bricked it ☻