As well the security software prevents illegal software from being installed on the lab computers. The software can actually be installed, but when the computer is rebooted, it will be deleted when the clean desktop image is restored. The computers are set to reboot automatically so that if a file or application is deleted, it will be automatically restored by the reboot. The computers should reboot automatically after 2 hours of idle time. Unfortunately they are currently rebooting after only 20 minutes of idle time.
Idle time is that time when there is no movement from the mouse or the keyboard.
Essentially, the computer is turned on, but it is not being used. Typing in a document or spreadsheet, using the mouse to navigate through web pages or email, all keep the computer active, and not idle. Thank you for your understanding.