thanks guys.... i did use gpedit to do some of the things i wanted. For ex. preventing wallpaper and disabling or removing the display icon in control panel. But still when a student saves a pic (whether jpeg or bitmap), lets say from the internet into the pc. He/she can still make it as the background eventhough i disable things under gpedit to prevent such thing from happening. Another question, is there a way to secure icons that i set up on the desktop so they can't be deleted. Or if deleted then would still be there when user logs off and logs in again. I hope i'm making sense and thank you guys very much for helping....