I have an old school MB, which is GA-EP45-UD3RP45UD3r Rev 1.1 Which has no such thing called UEFI. I do have a latest BIOS (F12) on this MB, I am sure which mean nothing to Win 8. Win 8 gives me error message "Secure Boot isn't compatible with your PC Your PC's firmware doesn't support Secure Boot so you won't be able to use it in Windows 8." I am not sure secure windows 8 mean what! I can't install windows or can't use it ? Also I can't use Microsoft Office Professional Edition 2003 with Wn 8 ?