I don't have an UNO, but I had no problem installing. How did you try and install?
You should let the window box pop up, then specify the location to search. Select the arduino/drivers folder and windows should do the rest. You may have to do it twice as sometimes the "found new hardware" thing seems to pop up 2 instances.
No sense in getting frustrating and saying "I quit". What kind of thing to say is that for someone messing with DIY electronics. When you have a problem you don't submit and move on, you beat that problem into submission! A few more details would definitely help others help you.