I'm on a fresh install of 64-bit windows 8.1, but the BIOS installer gives the following error message: "Your machine does not match with this BIOS. Update process will be halted." Why on earth is this? I googled the error message but this only seems to be a problem with people trying to upgrade the BIOS from win 10... but I'm definitely on 8.1, it even says Windows 8.1 Build 9600 in the corner. The only modification I made is that I upgraded the ram to 8 GB (from 4 GB), but the BIOS update fails even if I take the extra stick out.