I found how to disable the System Restore and how to turn it back on just fine, thank you. But, what do I do between the disable and the enable other than restart? What did I miss?

I should turn it back on, yes? Before I send a HijackThis log file? and set restore points?
Avast! found a new Win32 Beagle-AH (wm) today and we deleted it as was instructed by Avast! It was a fresh e-mail, not something formerly in the Restore/ temp file.