I have some users that couldn't figure it out with Windows 7 that they needed to create a new password in order to log in with a password expire. Now with Windows 10, when you try to log in, it doesn't even allow you to create a new password right there, if gives you a message that your password has expired and then tells you that you need to click on switch users and log in again before you can change your password. At which point you can press OK, and then it goes back to asking for the password for your user account. This seems to create an infinite user loop where they try to log in, read only the first line of the message, press OK, then try to log in again, and repeat, always missing the step to click on switch users.