Dual login Windows and OSX on an Apple computer (not dual boot) A couple years ago I was using the business center of an Embassy Suites hotel. They had Apple computers with a dual login screen where I could choose to login to Windows or OSX. This was not a dual boot setup. It was choose at login. I have not been able to find a system that does this.

Do you know of such a system that makes this possible? Again, this is for a dual login, not a dual boot configuration.
I suspect it was a dual boot set up. This can be done via refit and would show a screen like this

You then get taken to the Windows or OS X login - but for both of these you can make this auto login so the process does not stop here and you go in as a user. In OS X probably as the guest user and I think this can be done on windows as well