If you're running a boxed set, I would consider doing something like this. (susankayequinn.com)
If System Restore is not working and system restore points are not created, you may want to open Run box from the WinX menu, type services.msc to open the Services Manager and ensure that the Volume Shadow Copy & Task Scheduler & Microsoft Software Shadow Copy Provider Service is Running and set to Automatic. (thewindowsclub.com)
5] Alternatively, you could open the Group Policy Editor, by typing gpedit.msc in Run box and hitting Enter. (thewindowsclub.com)