I had the same error with Elements 14. The effect was I was unable to save ANY photo files in the Editor, and trying to change the Ram preferences just gave this error - this rendered the entire Adobe software useless. It seemed to start fairly recently, perhaps after the recent April Creators Update.
Anyway I applied the registry fix, and then was immediately able to change the Ram preferences. Instant success, the system is now back in action - it starts much faster too.
This problem seems so serious to me I am really surprised that a company like Adobe can let it go on for so long without a fix. I was seriously about to abandon Adobe for an alternative!!