Doesn't do anything you can't do yourself

I purchased because of slow boot up. it did NOT help at all, nor any other benefits were visible. unbeknownst to me they have a hidden auto-renewal feature, which itself does not turn off despite trying multiple times. There is NO one to call and charge is processed by a third party who wants nothing to do with the end users, and refers to the seller. I tried the CCleaner contact form and it as soon as a few characters are typed in, it displays "Hmm we think you are a robot..." so it's a scam. the only options is disputing the charge and ALSO hope to exclude them from future charges as well. AVOID lost money and hours of wasted time.