Hello, Well I have been using this product for about 3 years now and On this win7 computer I've noticed sudden lag specially when I open the internet I get this freezes and even worst when I attempt to play video games like Dayz. I get great fps at first, then I start with the freezes and fps drop. So I run the cleaner and I've noticed the windows MS search gets picked up so it goes active while on the internet or playing games slowing down my computer dramatically.