Grab your DVD drive(no usb boot), throw a SSD in it, put your windows 10 install disk into the DVD drive and install Windows 10. Once you are into the bios, just disable hdd security, and you literally have a computer. Just go into the bios (google for the bios password, do not post it here). The only thing stopping you from using it as a PC when it comes from the factory is that it has a HDD password enabled and if you try to plug another HDD in to the system, it won't boot it. I've been playing around with the TTX3 system lately and i have a bunch of info i would like to post up. Posts are so scattered and it makes it so difficult to find good info and pictures. Lets post all the info about the TTX3 systems here in this thread, and we can chat in this thread about them.
