Empty Registry Keys
Dear sir/madam,
Please note that when windows system and other processes are running, it is unavoidable that some registry items are generated and rewritten constantly. That is why you see unrepairable registry issues like empty keys emerged instantly after each scan. Since these empty keys and errors would not do any harm to your computer, so please don't worry about them! Besides, it is recommended that you can scan the registry once or twice per week.
Thanks!