As shared users use the computer, the cache file fills with the changes to the operating system and program files. As a result, the longer the computer is up and running, the larger the cache file will grow. We recommend selecting the Remove all changes at restart option and restarting the computer daily. With more frequent restarts, a smaller cache size is required.

The User Settings dialog box offers you an option to restart the computer whenever a user using the shared user profile logs off. If you select this option on all of your shared user profiles, and if you also select the Remove all changes at restart option in the Protect the Hard Disk dialog box, each user will have an identical user experience. If you do not select the option to restart after each user logs off, we recommend restarting the computer frequently to clear it of any changes collected in the cache file.