Well, first and formost, congrats on getting into the Setup account!
Although, the Setup account is only used in the process of commissioning a workstation, and by default, is given no management rights. So although there was the Management Console icon on the desktop, it dosen't necessarily mean that the user has admin rights.
Another word of advice, as I have learnt myself, never log into an account you shouldn't be on in an ICT lesson, as technicians do safe guard very closely, the subject that they manage, a lot more than a subject like Art or Technology.
And if you're close to doing your GCSE's, stay clear of doing anything, too malicious.
Hope this helps!
