I have used it with some degree of success- To note when I do a restore point- I always do the following- Reaply any update that was installed after the date on the restore point. I also do a full scandisk- mycomputer- find drive- right click- choose properties- Tools (tab) then Scandisk check now- checkmark both boxes- and reboot. as soon as that check is done I then do a defrag just to make sure evertything is smooth.

The one thing to remember is that should you get a virus on your system- before you attempt to remove it you have to disable the system restore- so the Antivirus software has to have access to the file store to disinfect it.