installed new mobo and cant boot windows

hi all

i just installed a new motherboard and cpu and cant boot my primary windows drive because windows (7 64bit) is trying to boot with the old mobo drivers. i have reinstalled windows (7 32bit, i lost my 64bit dvd) on a secondary drive. is there a way to get rid of the old mobo drivers and install my new ones? there is nothing in the manual about it and i cant find a solution searching google


any help would be greatly appreciated as always