This claims to fix it
Pin Recent folders or Recent Places to the Explorer Navigation Pane in Windows 10 >> Winhelponline

using this registry file especially the last bit about the Wow6432Node...

Yes, you are correct.

Recent is there in my top screen shot but not in the other two screenshots.

I am seeing the Pin to Quick accesss but Recent Folders is already pinned to quick access but...

The latter link, to
How to Pin Recent Folders to Quick Access in Windows 10
is the thread that we are now posting on, and I have done that which you so kindly outline above but, as you can see...

Thank you.

I have not installed the registry hack in this computer yet, but how about in Firefox (the screenshot above is from Firefox's Browse dialogue when uploading the same screenshot to...

Thank you very much for your immediate response.

I don't have Windows 10 Home so I tried using the registry.
In
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies
I created...

Dear Shawn

Thank you very much! I signed up with the forums to say thank you.
Alas however, while the recent folders are back in the quick links
in File Explorer, they are not displayed in...