Scanner no longer works when upgraded by new drivers

I have been using a film scanner connected to the USB port of my computer for several months. I heard that the manufacturer has released new drivers for the scanner that allow it to make multiple passes of a single negative and generate a higher resolution digital image. I downloaded the drivers from the vendor's website, installed them using the Update Hardware Wizard, and rebooted when prompted. Now the scanner no longer works.
I don't want to go for "Roll Back Driver" as I want to use the updated features of the scanner. So what is the best and easiest way to resolve this problem?
