I’ll repeat here what I wrote before. There are 2 separate items about restore points. One thing is the list of available restore points. If you want to go back to a certain restore point, it needs to be listed.

A different thing is the files themselves; those that conform the restore point itself.

Depending on the specific method or tool to “delete” restore points (or setting them “off”, disabling them), the real files may or may not be really deleted. One example is CCleaner, which deletes the list, but not the files. There are different methods in Windows itself too.

That’s why I said that “deleting” a restore point, or even “disabling the feature”, it may or may not actually delete the files of old restore points.

In any case, if you re-enable System Restore now, the older ones should not be listed in Windows anymore, and new restore point files should eventually replace any potential older remnant, if any were to be left from the older restore points.