@HarFanG, you don’t need to create an account, purchase as a guest is fine. You just need an email because it’s the way we notify you when the license is about to expire. Up to you to give a real email or temp email, but if you do so you won’t get notified when the time comes… Free version works too, with less features.
As for Auslogics Disk Defrag what’s the detection name ? Is it labeled as a PUP ?