It makes a note of the BIOS make and version.. when YOU updated the BIOS,
the details that the OS had noted will have changed, so the installation
assumes it is on a different computer, and therefore requires activation..
"Robert Robinson" <robbiex@bellsouth.net> wrote in message
news:uJCGZ3vkHHA.1624@TK2MSFTNGP02.phx.gbl...
> It is my understanding that Microsoft modifies a motherboard's BIOS code
> as part of the activation process. I installed a factory recommended BIOS
> update and Windows Server 2007 now wants to be re-activated.
> Modifying BIOS code is a risky process. Any failure, as from a power
> outage, floppy read error or software glitch, can result in an inoperable
> BIOS. Correcting this problem requires either a new EEPROM IC or "factory"
> re-programming of the existing IC. In the interim, the computer is
> completely disabled.
> Microsoft's modification of BIOS code is an unwarranted, hazardous
> intrusion of customer owned hardware.
--
Mike Hall
MS MVP Windows Shell/User
http://msmvps.com/blogs/mikehall/