I'm interested in locking down my PC so that only a few programs can be used.
For example, when I'm writing a paper I only want to be able to use Word. No Firefox or DVD player because I will be distracted.
I want to have various modes (one for writing a paper, another for doing taxes) that will prevent me from using any program except for the ones I need to perform a task.
Is there a program that will do that? Can be free or commercial.