Yes, what I reported in my last post is different from my main concern, which remains.
So, there are two things going on here.
#2 The recent thing, screenshot:
The “Add “Run CCleaner” option …” options, which in this screenshot are checked; if I uncheck those and navigate away from this settings page and then return to the page, they are again checked. I’d never seen this before; this is new after updating to 6.38 recently.
#1 The original thing, which we’ll return to after the new issue is addressed; though I still insist on my question/ proposal: If the program is already installed, and its installer-updater is executed (particularly in /S silent mode), NO settings should be reverted unless there is a significant change in features which truly requires changing the user’s previously-expressed preferences.