Hello all. My neighbor's e-machine T2862 is showing a "no boot file received" message when I can get to dos on start-up.....either that or the big "E" graphic. Did he get a virus from Facebook? He has no start-up disks. Should I buy a download for a boot file? Thanks in advance for your help...and I'm a computer-geek-wanna-be, so please advise in a more elementary language.