I've been asked by the head of the local junior school to come in and sort out the computers. Most of them are PIII spec, SDRAM, running an assortment of Win 95/98/2000 (17 of them donated by a philanthropic local about 10 years ago).They have never been maintained and are a mess.The headmaster wants them internet enabled, so an upgrade to XP is a must. I'll be donating some licences and beg/borrowing/stealing others as here in southern Greece there are zero funds available for this sort of thing, my labour will also be donated..... Whilst I am fine with the hardware/software/networking side of this, the thing I am seeking advice on is: how to lock them down? Most of my customers couldn't hack open a tin of beans, but there are some tech savvy 10 year olds out there who won't hesitate to get admin rights and do what they want with it.... I do NOT want to be outsmarted by a kid, nor do I want to be administering a botnet. Bear in mind this will be XP home, not the easiest OS to secure, so would the IT pros out there give me the benefit of their experience. Things on my list so far: BIOS locked, so no booting from CD or USB. Limited accounts No access to any administative tasks whatsoever Torx screws securing the case covers, some also have padlock tags. Err, that's about it actually, never really had to do something on this scale before, so suggestions please. Additional: I plan to connect them wirelessly to the internet.