I'm just a one person office. I use a Win10 computer for my work. I have my previous Win8 computer in my office. I don't connect it to the internet anymore. I have the previous computer to that a Win7 at home. I don't connect that to the internet either. I do have a laptop. I bought it when Win8 came out. I upgraded it to Win10. A lot of funny things happened. I won't go into them and I don't have the techie expertise to describe them. Luckily I don't use the laptop for work, just connecting to the internet at home. Many here are more tech knowledgeable than me. For me and my experience, I will not upgrade the OS. I'll buy a new computer with the latest OS.