Security Suite "Tuneup Details" - how do I turn on items that are currently turned off?

I have the version of Norton Security Suite that comes with my Comcast internet service. 

In the PC tuneup section, the first section is "details" and it says that the scheduled internet explorer browsing activities clean up is currently turned off.  The scheduled windows registry cleanup is also turned off.

I don't know how to turn these 2 items on; there doesn't seem to be an obvious button or link to click on.  The other 5 items under tuneup were turned on automatically when I downloaded the security suite.

Help on this one please?