I have a T570 with 7th gen Intel CPU. quite a nice with long batteries life (6-cells instead of standard 3-cells). However, mine has a traditional 5400rpm HDD rather PCI one. It didn't come with any OS pre-installed. so I bought a cheap claimed to be refurbished Windows key from some website (forgot the name). I think it's a pirated one however it passes all activation on Micro$oft's website.