But as I see the damaged systems, I can not help when folk hit machines with these cleaners. Once in a while some one will try to persuade me to try such again. Sorry no. Too many troubles from my view.
-> Again, I am left to guess what issue you are trying to fix. I don't see any issue other that System Restore is not working but it begs the question what is the issue you are trying to undo?
-> There are ways to work System Restore or repair it but that is not what you asked and I'm left to guess the issue and questions.
I did not supply ANY of the usual System Restore fixes because all of them wipe out prior restore points.