I think you are mistaken us for someone else, as we have not ever had a product called "Registry Healer", nor has any of our product ever had a feature called "Registry Healer".
Also, you can search the forum, is it full of unhandled "license not received" messages or "my computer crashed" messages?
There should never be such problem in PowerTools that would force user to format their computer to re-install Windows. Even in the worst case scenario (which are very rare, by the way), simply using the System Restore Point to restore a previous restore point solves any problem that may be affecting the computer.
I should also remind that we have a lot of users. If there would be problems in PowerTools that would cause it to crash the system, the forum would be full of such messages, but it's not, because such problems are extremely rare. In fact, we have had years of no bug found from PowerTools that would cause a single false positive detection to be made. Unfortunately, the PowerTools X did have a bug that could cause a false positive detection, but that issue affected only very limited users (the problem occurred only with specific type of data in a specific type of system: up to date, we have received under ten reports of the issue occurring).