Follow the basic steps in the link below to check that:
If it's been disabled, then you don't have any restore points to use. Sorry. But if you want it enabled, do so and configure the disk space so it's sufficient to hold a number of restore points.
As to creating a new system restore point, see the link below:
And please be aware that a few antivirus suites such as Norton and Kaspersky can actually
"break" sys restore.. Uninstall them to see if it fixes the issue.
Hope this helps.
I decided to do a system restore yesterday as I had got in a bit of a tangle doing various adds/deletes. I normally have about 3 options for restore points but this time I only got 1 option, dated August 2014 ! How on earth could this have happened, given that I don't know how to change save/restore options for the OpSys? Pointers to the problem solution and also to handling the restore mechanism appreciated.