This has nothing to do with the firmware. Looks like you have to remove the upper and lower filters, instructions are at http://support.microsoft.com/?scid=kb%3Ben-us%3B314060&x=12&y=13. Such problems happen when an uninstaller does not remove the filter drivers correctly.
Instead of deleting the two filter keys you can also rename them and if that works edit the values until you know which filter caused the problem. You have to reboot after each try.
Backup your system partition first.
It might be easier to use imgburn for this. Select Tools/Filter Driver Load Order, then select one filter after the other. If imgburn can not display the version info, the filter binary is not available and the filter setting has to be removed by clicking 'Remove Selected Filter'.