|Sadly there are many such "check/find and fix it all" packages out there in www-land. Many do as this one appears to - "discovers" all manner of problems and then asks for money to fix them. Invariably they are best avoided.|
Unfortunately many are quite convincing, especially to those not well versed in computer software etc. And some of these outfits are now trying to sue reviewers who post negative/critical reviews.
One that does do what it says - and is free (although they do appreciate a wee donation if you feels so inclined) - is tweaking.com.
Many here have used this utility and been well served by it; and recommend it. You have to read the few guidelines and follow them carefully. On the same site there is other stuff - which you don't need.
Also many of these outfit who claim to a Microsoft partner - invariably "aren't"; in effect conning the possible user/customer.
I would remove the utility; then run a few cleaner utilties to be sure it hasn't left anything behind... There are several we recommend regularly here; and all "free".