The player is important when you want to watch H.265 videos. The playback of a 4K video (H.264) with the standard Windows Player only resulted in a low CPU load. This also includes the playback of a 4K YouTube video. The fan activity is now very similar in both operating systems when you perform comparable tasks, which means you usually have a silent device in practice. The fan was usually more audible in older Windows versions (W7, W8.1) compared to Mac OS X, but this behavior improved with Windows 10. We therefore recommend using an external mouse we did not encounter any problems when we used a Bluetooth mouse from Logitech during our review period. This seems to be an artificial restriction by Apple. There is at least no criticism for the precision and the response of the Trackpad, because it works flawlessly. Even simple gestures like pinch-to-zoom don't work. Other gestures with more fingers that you know from Mac OS X are not possible. Here we can also see a big handicap for the handling, because the Trackpad only supports inputs with up to two fingers. There you can restart the system under Mac OS X and adjust settings for the keyboard (deactivation of the illumination, default use of special functions) as well as the touchpad. You will also find a Boot Camp taskbar icon, which grants access to the Boot Camp System Control. All the necessary drivers including Wi-Fi, Bluetooth, Intel Iris Graphics etc. You can use Windows just like you would on any other regular Windows device after the installation of the Boot Camp driver.