Performance test

Hello,this may sound not much of a question but i still dont know how to figure it out,today norton opend a page for me telling me about my computer performance and power mangment and backup that they are not good and need to be fixed,there was a page too tells step by step how to,what i want is how do i get that page open,where i can test my computer performance and it tells me what's wrong with it,i tried checking but couldn't find it

 

thanks for your time