Friend wanted his machine absolutely locked down. People kept messing with his customization. Like he said PC means personal. I tend to agree for all devices. Having people mess with my device whether tablet or PC usually cuts me deep. Everyone needs their own machine. Such is the way of jealous technology. Plus machines are pretty much cheap enough for people to own their share whether first world or third developing. In the latter case mobile phones are the jealous machines. Same difference of digital lusting. I bios locked his machine and then created a windows password. He was satisfied that an intruder needed two passwords to access his machine. All in a days fiddle.