Night mare to set up lots of obstacles to over come could not install windows as there was two setting in bios that hade to be chaged round but not mentioned in the instructions' good jobe that youtube was there to help me out with video, i  also had to buy a wifi usb to install the divers for my wifi card as there is no internet controllers diver  so no  internet witch is a pane. finally got up and running went to intel website and downloaded drivers but there is a update that stoped all the usb ports from working its 3.0 usb update for the two 3.0 ports dont down load had to reboot and put into recovey to put windows back before the update just so i could use keboard and mouse. this unit is over priced as iv looked at getting direct and can get for £100.00 wish i had shoped arround first.5 days on and had to reinstall Windows 8.1 could not install tied everything possible wiped hdd to make sure it there was no hidden partitions change setting in bios and much more could not get Windows installed give up and sent back for refund also one of the screws in the fame had sheared off on inside the screw hold so could not screw up one corner.