Microsoft has announced today that PC users can download drivers to play games using an Xbox One controller. The drivers are set to be released as part of a Windows update in the near future, but Microsoft has decided to offer early access to dedicated PC gamers, presumably due to the high demand
Here are the Xbox One controller PC driver download links:
You can use an Xbox One controller with any PC game that features gamepad support, by downloading the drivers and then connecting the controller to your computer through a micro USB cable. It seems like it will also be compatible with Windows tablet devices, according to the picture that Microsoft released.