The device is technically excellent and works the way you expect. For this, 5 stars would be quite appropriate. And if the device had been so delivered, as described, there were not the slightest reason to downgrade. But this is not the case. It has not only Windows 8.1 is installed, but also a variety of software ranging from about Norton Cleaning programs and other scrap. The description of the goods says that this software is included on a CD. This in turn was missing in my delivery and for that you have installed all the software on the computer scrap. The cleansing of the PC has lasted two weeks, and if I had not taken part with to South America, I would have returned it. Probably I will at the end have no choice but to reinstall Windows.