Hum, I have to thank you. I stumbled on ophcrack/l0phtcrack last week and thanks to you I tried it. It found the weak password I use to get my windows installations in no time (with livecd, under a VM : >2 min). And in ten minutes everything included, it found the admin password at my school. It was not a sophisticated one, a short one in fact but it worked. ^^ Hopefully, they weren't using a complicated pass (*^¨$£¤%...) because otherwise it would not have worked (this part costs >1000€). Btw, I fixed one computer. And am probably going to install Flash Player on some computers because it seems the tech is nonexistant.... Anyway,