Hello, The_PrivaZer_Team. The folders I'm talking about are un-needed, they're blobs of goo on my little hard drive.
The "Clean Windows Update" option was already checked, it had deleted the Windows.old folder previously via Disk Cleanup, without issues. This was a completely different folder, generated by using the Update Assistant. Also, a seeming duplicate, $Get Current, also in C\, contained the same amount of stuff and was not detected by PrivaZer. I also deleted this folder and regained 7 GB total.
I tried to access what you had in your screenshot for Advanced Users and could not check Windows Updates there, it was greyed out and could not be enabled. Mind you, I don't have the subscription, just the donor version. And, it was already working as intended running under Basic User parameters.
I deleted this folder myself after I posted here. Its size was briefly shown @ :21 in the clip I made and posted above: 3,424,814 KB or almost 3/12 GB. Unfortunately, I whacked the Recycle Bin on the desktop in order to preserve a clean desktop appearance. Which led me to ask whether PrivaZer is compatible with StartisBack or not. Because that's where my Recycle Bin now resides. Just to re-emphasize: the "For recycle bin" option was already checked off. Oh well.
Far as I'm concerned, everything's OK. Was wondering, though, if my observations had any merit. Thanks for looking into it.
Edit: If Disk Cleanup doesn't recognize these folders (which I don't think it does), then I should not expect PrivaZer to. OK, so that partially resolves my question.