My computer msi maidboard was working

Hello,
my computer msi mainboard and intel processer was working quit will untill i suffered virus invasion i crash the hdd that had 3 partions now only has one, i crashed it and rebooted it on another computer. when i put it back into the msi computer it wouldnt load so i went in to the bios area and played around now theres nothing just a orange lite on the monitar and no other action have i erased the motherboard boot up or what please help