Welcome.
I see in your attachment that some are named "Leaktest". Have you run any leaktests lately? It's impossible to tell if they are real or not becuase they are all located in System Volume Information (window's system resyore points) which are inaccessible.
My advice is to just disable system restore (which will clear all your existing restore points) and then enable system restore again afterwards, so windows will start making new restore points again.
This will show you how to disable/enable SR:
http://www.bleepingcomputer.com/tutorials/tutorial56.html