Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
As long as your computer is connected to the internet, windows should be able to redownload this automatically..
So heres what you do. Go to your device manager.
Please press the windows key on your keyboard, hold it down, and press R( the windows key is two keys to the left of your space bar )Onscreen should be a box that says Open / Run . In that box type in,devmgmt.msc and then hit enter...
Then, at the bottom go to the USB section.. Now, right click and uninstall all your usb controllers.
Then, restart the computer.. It should begin reinstalling the controllers.
If you get stuck or run into any issues, or if this doesnt work let me know!
I strive to provide great service, and greatly appreciate a 5 star rating clicked and submitted when you are satisfied.. I always answer follow up questions.Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.