I\'m using TFS Preview (Team Foundation Service) with one of my projects with Visual Studio 2012. I\'m also using an on-premises TFS server with most of my projects. When I
The TFS Preview login apparently uses Internet Explorer and thus might conflict with other MS Accounts you are using. Fully clearing the IE cache seems to work for me. After the cache clearing, I get to the correct login screen and may enter my credentials as needed.