If you find a minute can you let me know what settings you changed in CCleaner, and what additional boxes you checked? Maybe a screen shot if possible, then I can set it and forget it!
I changed none of the default settings relative to the system restore or drive wiper. The settings I have that weren't checked by default are related to dns cache, old prefetch, and a few others. Those settings though have nothing to do with the system restore issue.
See my screenshots attached.
Notice that in the second picture, there is no check in the box for the option to "Wipe Free Space". It's that box that you would check, using all the other default settings, in order to actually run the drive wiper. With no check there, no drive wiping takes place regardless of those other default settings.