I have a loaner Microsoft Surface RT to evaluate. When I turn it on and it boots to the login screen there is the previous user's name and prompt for their password. I don't seem to be able to do anything to switch users. I can only sleep, shut down or restart. How can I change users without the previous user loging in? What would be done in the case of the previous user no longer being available to login? It seems the device would no longer be usable. I am sure I am missing something.
If there was another possible user account on any Windows 8 (ish) device, then there should be an arrow to the top left of the picture for the user account you're on. That would take you to another screen with usernames and pictures to select who to login as.
So, if that is not there then it is unlikely that another account exists that can be used. Sounds like you need to talk to whoever you borrowed it from to evaluate and ask them to create a guest account or something temporary for you.