I'd like to know what the F*** they have in there code. I had a little bit of lag in my Laptop and I needed a good cleaner. It has done nothing but freeze up and crash. It's taken me 3 reboots just to get this review in. Terrible shouldn't be allowed to sell it if it's not stable. I was told by one of the expert's at our local computer shop that it was what I needed with my win 10. There's no reason it should effect my computer so badly. Do yourself a favor and the headache stay away from it. I wouldn't recommend it to anyone.