Last week (what I now know to be) the qvo6 virus hijacked my browsers.. I uninstalled and reinstalled my browsers and that seemed to solve the problem.
I then realised today that whenever I did a google search, the next pages I visited would have adverts directly associated to my google searches, so a problem clearly still existed, or in the very least, a setting that I was unsure how to change.
Shortly after realising that my browsing was being 'tracked', my browsers closed themselves and upon reopening I found I had the delta-homes virus.
Knowing I had not installed anything, and that I rarely click on any links that I am unfamilliar with, I was very surprised to find an installed program called Winzipper by Taiwan Shui Mu Chih Ching in control panel. Which I did not install, it somehow installed itself. Of course I promptly uninstalled this.
I then remembered your website. Found a thread on the qvo6 virus, ran rkill, adwcleaner and sc-cleaner.
This appears to have resolved the issues and cleaned my computer. Which brings me to two questions, which may seem dumb but..
A. Why didn't Avast pick up any problems?
B. Is there any way to double check that my computer is now in fact clean?