Just bought this new Win. 10 PC Desk top and am trying it out with the latest Sandboxie update 5.33.1 and I do have an MS email account I can verify that I have no problem logging in to my account. With SB version 5.31.6 there was a problem logging in. P.S. I still have my old Windows 7 here right along side of me and it's still working good as well.