After installing AVAST Home Free, I left all the settings pretty much alone. Right now the icon says I am "On Access Scanner: 7 providers of 6 running".
My question is I am really not sure which ones are needed more over others. If I should disable or just customize some parts.
Definately needed, standard shield, web shield, internet web mail (outlook express), should leave on- network shield.
Optional to leave-P2P unless if, as already mentioned you use those types of programs and Instant messeneger if you use messengers of any kind.
The Outlook/Exchange is the mail scanner for outlook (it’s the one provider shown as not running), it won’t run unless you use outlook (not outlook express).
The debate is split if you use any resources by leaving the providers enabled but not using them.