People call me or ask me for computer help all the time. My standard answer to most problems is "install linux."
If that's your answer to every computer problem it's a wonder anyone keeps calling you. I can lock down a Windows machine in five minutes, spend five more minutes educating the user, and that's the end of it. That locked down machine will be just as usable to the customer as it was when I started, so no, it doesn't involve deleting their user account
