anti virus/spyware protection

[Magzy]

I need someone knowledgeable in comps to enlighten me.  We have 3 comps, on the 2 pc's we are running Trend and Webroot (is this redundant or do they each do different things).  Now I need protection on a laptop.  Oh, and I have installed the free version of Advanced Care system on the 2 pc's.  Do I need all 3 or if I purchased the Advanced Care Pro, would it do everything and I would not need the other 2.   

[Homer]

I only use Trend and Advanced Windows Care. AWC does not have AV protection.

[Magzy]

Thank you so very much!  All of it is just too confusing (one does this not that and on and on).....and I don't want to be spending bucks that are not needed.  Again, thanks for all your help (past, present and future)