Hi,n We reccommend that you remove any items from System Volume (Restore) by deleting the entire Restore Point, actually all old Restore Points....more about why down below.
System Restore Points are routinely deleted usually after malware is being removed on a computer, but there are other times when it is a good idea to delete all old Restore Points and then re-enable System Restore and create a new clean Point....
Here are the directions for just how to, read or scroll down and start at
Disabling System Restore <first step is to turn off Restore on all drives
http://www.bleepingcomputer.com/tuto...utorial56.html
Then, you restart, next turn System Restore back ON, and go and create the first new Restore Point, and from then on, Windows manages Restore for you.