Removing a driver

Hello where i work we have encountered a slight problem. The problem is we have a conflict between some software and some drivers on a computer. when both the software and the driver are installed on the same computer when ever you log in it hangs up.

Unfortunately at this point we have only 1 solution available to use and its is to remove the driver(since the device is not necessary). Now is there a way I can remove the driver so that the computer can not automatically try and reinstall the device each start up. I have tried deleting the .sys file out of the drivers directory, but it just recreates it.

any help would be greatly appreciated other wise we have to eredo our image from scratch.