syspreping pcs display driver disappears

ive been using sysprep and wds to fire images at laptops in a school. Ive tried it with 2 different laptops (1 hp 1 acer) but both have intel video drivers. Sysprep works ok (im just running it manually and ticking generalize) and all drivers except the video card are fine but it seems to uninstall the video drivers while its sysprepping the laptop.

Im pretty sure its something im doing wrong but cant think what it is (display driver is signed as far as i remember) and it is more annoying than a serious problem but any suggestions are welcome

It is an expected behaviour as when it generalises it rips out all of the machine specific drivers (most of the time :() if you are using the MDT the solution is as simple as adding the driver packages to the distribution point and it will pick them up automaticly. If not you will have to either setup the driverpath in the image to a specific location and add the drivers here or add them to a $OEM$ folder in the image (you'll have to check this method out as I have not done it this way).