It's rampant on this campus. One person gets a piece of software, and the next time we go back, everybody has it on their computer. We're not policemen, and we don't go tattling on people, but if you lose a piece of software and you want us to reinstall it, you'd better have the original disks for it and be the legal owner. Screen savers are commonly pirated. There are good freeware and shareware screen savers that people could use instead of pirated ones.
Screen savers are unnecessary on color monitors anyway.
They're fun, and sometimes they come with passwords, which can be helpful. Shutting down the machine any other way than the normal shutdown sequence is not recommended. People should never simply disconnect the power. Shutting down properly enables the computer to delete temporary files from RAM, which makes it run more smoothly the next time you start up. Microsoft makes a lot of applications.