The machine is a very well done unit and preforms very will. I am looking at using them in approx 25 units but it comes preloaded with windows 10 pro but licensed to Kingdel and you cant remove the "Kingdel" user. Which takes up more space on the drive. Out of the box I did a malware eveal and it had 9 files that were questionable. I won't buy any more until I can find out how to get rid of the Kingdel user. Not sure what might be in that system from China.