I prefer Windows 7 and when I bought my last computer I purposefully found one with Windows 7. My computer kept trying to upgrade to 10 and then I would get a message to install it, which I did not want to do. I finally talked to tech support at Costco and they fixed it so the computer would no longer try to upgrade to 10. I always buy anything technical like computers, tablets, etc at Costco because you then get free tech support 24/7 for the life of the product.... and they are located in Florida and speak perfect English.