I have a new Acer Aspire E5-574 laptop that cam with Windows 10 pre-installed. I now have a single admin user account using MS Live. I now wish to change this account to a local account but I find that this is impossible. I have found on the internet simple instructions as how this can be done. However when I go to the user account page I find, firstly, that there is no tab on the left for "Your Account" and, secondly) when I try to add another account that this does not work. It appears that the system is completely locked to my current account. Any suggestions?