Can you tell me the release date of the Compu Live software you are using on that computer? Also in about 99% of the cases in which a program hangs or crashes you most of the time don't need to reboot your computer. you just need to end the process in the windows task manager(Ctrl+alt+Del).
To find the exact version date open the progrma and find the "?" and click on about. Sorry your having trouble. Welcome to the forums.
Sincerely,