All 3 are free. If you're a safe browser, you may never have to use Malware Bytes, but if you do get a virus or trojan, I think it's the best program around. Recently my mother actually got a virus (she clicks the stupidest things!) and I was thankful I put it on her laptop before she clicked stupid things. All fine now. CCleaner is a light registry-cleaning program which is very helpful for older installations of windows. I run it every month or so in case my registry gets clogged with useless indexes.
Hope that helps.
[8:32:45 PM] Dusty Lens: Oh no, let me get that. Hello? Oh it's my grandma. She says to be roleplay.
[12:49:19 AM] Elgatodiablo: You know its nice that you have all that proof and all, Bacon... but I just don't believe you.