This was the second Lenovo ThinkCentre Windows 10 refurbished M series I have purchased, and the forthrefurbished machine I have purchased. I have become partial to refurbished Lenovo machines.The have all worked well at a fraction of the price vs. a new machine. The Lenovo refurbished laptopI purchased nearly 6 years ago has worked great. Unfortunately it is a Windows 7 machine and Windows 7will no longer be supported after mid January 2020. Sometime next year I will replace it with a refurbishedLenovo Windows 10 M Series ThinkCentre desktop. I really have no need for a laptop anymore and this M series desk top will be good for the application I am using it for.