They don't need to use it, I have it set in the registry to close any non-responding program within 30 seconds. The main reason is because there is three people using this computer, and it tends to get hogged.. they will use it for 5-6 hours at a time.. I installed a program called Watch Dog to limit the computer time to 2 1/2 hours at a time, and a total of 5 hours a day. The directory is hidden, the icon's are hodden, it cannot be uninstalled or removed from the startup... but for some reason, it shows up in the task manager (it's not suppose to, and I have the option set for it not to, but it's not working).. so it is easy to get around the watchdog software if you just end task it.