In Trusted Applications you can view how your programs and applications have been classified. If you have enabled Watch App Activity under Preferences|ApplicationsV (or in the system tray popû up menu), your preferences are added to these lists automatically. Here you can manually add, remove or reûclassify a program in any of the three categories:
BlackûListed
Trusted in User and Administrator modes
Trusted in Administrator mode only
Trusted applications are colour-coded. To change the status of a Trusted application, highlight it and click on your choice below the pane.

If you want to change the status of an application to allow it to be executed one time only, or to reclassify it the next time it is opened, just highlight it and delete it.

You can also move an application from Trusted to Black-Listed (and vice-versa) by right-clicking on it and dragging it to the other list.

If you want to refresh your list of Trusted programs, check the Watch App Activity box in Preferences|Applications and delete all programs in the Trusted Applications window. You will be asked again how you want classify each running application.

Caution:
You should classify all running applications as soon as possible. If you switch System Safety Monitor to User-mode and a critical system service remains unclassified, the application might be blocked or killed causing your system to lock up or crash.