I bought the pro version 2 months ago. My computer went slower and slower. I had a glitch with something on the anti virus, they were very helpful and quick to advise uninstalling it and then reinstalling it. I found that after I had uninstalled it my computer was lightening fast. I decided to ask them for advice before I reinstall, they said that this was sometimes the case and they couldn't advise. I asked for a refund and after quick and constant contact during the initial problem, they now choose to completely ignore me.