I'm not trying to be funny, but theirs lots of these types of threads on this Forum, and many other Forums where people are tearing their hair out, trying to deal with these futile issues, I've been there too many times before, learnt my lesson. and vowed never to buy Microsoft based products ever again, I hope you get it sorted asap... I would have put it in the bin by now 
Thom

You've not seen the thread about the Mac malware, have you?
My Mbp is about is just over 2 years old, my sons Mbp is nearly 3 years old, neither of us have had one single software issue.... Nothing! Why would I want to start re beating myself over the head again with anything else?
Fair enough, yes I'm sure the malware issue is looming, but I'm not bothered, I'd just take it back to the shop and get it fixed if that's what it took, and set the repair bill against expenses, I'm all done with unecessary stress, makes no sense to me!
Thom