Good point there Aard~,

We are told that this is a "Technology and Entertainment Education Centre"?...... that sounds pretty ominous for a start......... like an open invitation to download/install pirated software, warez, malware and God knows what? AFAIK if an institution has illegal software on its systems it is legally responsible?

It sounds very much as if the users have local admin rights which would give them access to the Registry?

I cannot remember what this software is called, but I did hear of something that stores a secure image, and when you log off it wipes the current image. When someone else logs on it reinstalls the stored image. I believe it was intended for educational and public access environments.

Other ideas worth looking at, would be a virtual machine and a virtual sandbox?