IE10 and autologin Office 365

[Novalee]

Does anyone know a way to prevent this? In most cases it's very useful for our staff, however we have one team who use a shared logon for the PC and need to access different emails. The shared logon doesn't have an activated email address so when they go to e-mails, it just tells them there is a problem and they aren't able to log out and use their own email account.