Driver Issues PLEASE HELP!!!

I have windows 8. While troubleshooting an issue I just fixed, I ended up at Device manager and uninstalled my arduino uno and now it reads as an unkown device. Now I am trying to fix it by updating the driver and selecting arduino.inf but when i try to my computer tells it me that it found driver software but “The system cannot find the path specified”

p.s. my arduino works fine with other computers.