|"Is there a way to recover them?"|
No, once restore points quit working it is better to turn off system restore, then turn it back on so that it can start a new point.
These progs will help to remove your problem
1- rkill.exe (stops the process)
2- tdss killer (removes unwanted rootkits if found)
3- Malwarebytes (run a full scan and remove all it finds).
Run them in that order and see if that removes the problem...there are more free progs just in case
Some HELP in posting on Computing.net plus free progs and instructions Cheers