To be sure , you could try a completely fresh reinstall . Format the drive , reinstall windows . Then there ' s still a smaller risk of a bioslevel bit of malware that auto installs itself , but I don ' t think there ' s much you can do about that . You could also consider trading it in for a new one at the store selling it and buying a new one , if you ' re certain you ' re the owner . <| sep |> What ? Rego prices have halved in the last year for cars , try owning a motorbike . <| sep |> I did this as a thought exercise when I first met 5 e . I think it is useful information for DMs who aren ' t mathematically minded . Thanks for putting it in a simple format . Hopefully more people see this . <| sep |> But raised Catholic naturally . Or unnaturally , as the case may be .