Expunging User Info Automatically in IE

I'm at a public library and many of our patrons fail to un-check the "remember me" boxes when they log into their email and/or social network(s). We have Deep Freeze installed, so, when the computers are rebooted at the end of the day, the information is expunged from the PC. Many patrons log in & out of these PCs during the day through EnvisionWare's PC Reservation system; if user A saves his information, then user B can see it.

I've found Click&Clean and implemented it for our Chrome installations. That has killed the problem of saving information there; however, in IE, I've yet to find a solution that works. I do have "clean history on exit" selected and all options for cleaning enabled. Login information still sticks if "remember me" is clicked.

Any other options for automatically cleaning all login/password/history stuff on exit in IE? Currently we have PC Reservation set to reboot PCs after a session has ended which makes the process of moving between users a great deal slower.