I kinda wanna make a separate thread about this, but if you ever use a controller on PC, buy and install controller companion on steam. I've been using it for years, it's $5, and lets address super simple issues like this. Essentially lets you use your xbox controller to control the mouse cursor. Hit back and start simultaneously to turn it on, move the cursor, back and start again to turn it off. Can also be set to auto disable whenever anything goes full screen. Has full keyboard support and a bunch of other stuff. Pretty amazing for $5 tbh.
E: shit it's even cheaper, only $3 now
http://store.steampowered.com/app/367670/Controller_Companion/