Do nothing. Your system is fine.
All those socalled registry error finders are considered a scam by most of us. All they find: money for their makers.
I ran one of those Registry error finders. It tells me I have 278 Registry errors. However, and, of course, when you click on "Fix-it" you are required to purchase the antidote.
There are many of these so called Registry programmes out there.
I would like to know which I could trust to do the job they say they can, or would someone like to tell me how to remove these errors myself, assuming, of course I have 278 errors.