Maybe just a system factory reset is all that's needed. That would get you a clean BIOS, no infection. Some infections will attack the "flash" function of the BIOS, just like you can update online. The firmware chip, cannot be corrupted and will load on a factory reset. Then if things get to working and you can clean the viruses out, a BIOS update maybe called for after getting it all backed up. BIOS updates have been know to be the source of some nasty things, so beware of where you download from is legitimate.
Edited by mjd420nova, 23 March 2016 - 02:15 PM.