NU 16 cleaned files

Where are the files that tell me what registry keys,paths,folders that where fixed by NU16? I have noticed that this paid utility  is quite vague,  I know it will create a restore point, when I clean my reg and compact it. Other programs (free) give way more information than NU16, but i paid for this program. So I want to know what is going on with my registry.  My computer came with NIS 2013 so i stayed with the same security,  and then I purchased NU16. When do I clean these files or does NU16 take care of that also?

 

HP pavilion g6-2225nr

Win 8 X64 V6.2.9 IE 10

NIS 2014:smileyvery-happy: