I wouldn't really count on SR too much, especially if the point is a few days old; it would be better to count on an image to restore, have a look at this tutorial at the link below.
Imaging with free Macrium
I would suggest you only leave it set to create points for the C: Windows partition.
Have a look at this tutorial, especially Method Two
to auto-create SR points daily.
System Restore Point : Create at System Startup