re installing drives?

I have both the SXS devices and UDF driver.. And installed the devices drive first as recommended Then found there is a new devices drive,and it comes with the uninstall button so can get rid of the earlier drive.. but how do I get rid of the UDF driver.. so i can install the devices drive first.
So far I have uninstalled the older devices driver.. and installed the new driver.. and then installed the UDF driver again.. I presume it over writes the existing one? or do I need to uninstall the UDF driver too?

Thanks