Loaded win7 home premium 32 initially and then tried to upgrade to win10 and keep getting message 'The version of this file is not compatible....' System initially had Vista 64 loaded. Can't boot off usb or cd now. Pressing F12 and setting boot device manually doesn't help, system just keeps going and boots off installed os. Bios is ASI F4. Can install any 32 bit os once computer boots up.