Auto Restore?

Is there a way to have “public” workstations restore by itself? Let say we have 3 or more stations that clients, visitor, etc… uses everyday. We want to keep the computer clean and avoid viruses. Will restoring the system helps? If so, how can I automate the computer to restore to a certain date every day? Is there a software that can do this or similar to it? We just want to avoid the hassle of cleaning up the computer manually 🙂

Thanks in advance!