Not very computer adept I'm afraid so I'm come here to beg for help. If I miss out key info ask and I shall provide, sorry, not really sure what I'm looking for. Basically, Avast has been blocking an awful lot of activity lately, but it's not while I'm surfing the web - Avast appears to be saving me from files already on my Local PC if you see what I mean. As an example, here is a screenshot of my 'Virus Chest', where files are sitting which Avast has isolated as dangerous. http://i.imgur.com/pDl2ls6.png
Now I'm hoping you might look at that screenshot and go 'ah yes, I know the problem', but just in case, a few more details. Firstly, obviously, it all seems to be coming from "AppData" - the roaming folder more specifically. Does this mean anything? I do not know, but perhaps you do. Secondly, even if my computer was flooded with viruses, if Avast was dealing with all of them I suppose that would be fine, it's what its there for. But I do believe that they actually are affecting my system, because my internet seems very slow, programs crash slightly more often that they used to and - most strange of all, something that's really got my attention - I can't open Google Chrome, it closes/crashes IMMEDIATELY everytime I open it, regardless of how often I restart the PC etc. etc.
I know I am an awful idiot and it's probably my fault that I've got this in the first place, but if any of you can help me fix it you'd have my immense gratitude. Thank you frightfully in advance. I feel cheeky asking for free help but apparently that is the done thing.