I don’t know what the problem is with Avast and windows 8, but twice I’ve downloaded the free version and twice I had to remove it! Your newest version slowed my internet use down to a crawl! I’ve never seen such problems with Avast and previous versions of windows. I didn’t waste my time with the removal process thats been recommended, I did a system refresh and got it out and I have things back to normal, I just went ahead and activated windows defender and firewall…I least I know there’s no compatibility problems.