XP limited account not secure enough!

[SteveB_NI]

I have a number of stand-alone workstations in a classroom running Windows XP Professional.

 

I have started afresh with user accounts for the new school year - now summarised into 3 categories - those being 2 subjects (restricted limited account) and 1 admin account (obviously full access) for me.

 

Is there any way (preferably free) to fully secure the limited accounts? I mean stop the students changing wallpaper, deleting programs from start menu, adding shortcuts to desktop etc? Is there a way to enforce a particular wallpaper after start up?

 

I'm planning to install a freeware program which shuts the computers down at a certain time of night, I just would like something to stop silly changes being made.

[Guest]

http://www.microsoft.com/windows/products/winfamily/sharedaccess/default.mspx

[SteveB_NI]

Thanks! Just what I wanted. I have a problem though when attempting to download it - due to our "managed service" I can't get Windows to be authorised as genuine.

 

Oh well, a download for home I guess!