A:Answer You just have to log into the Microsoft account on the other PCs. So you can have 6 users and then it is however many devices you want. I log into mine on a MacBook, desktop, phone, surface and iPad. Then my mom has her own log in under the same account. She is logged into about 5-6 devices herself as well. We can still add 4 more people and they can log into all of their devices too.