Remove drive from folder tree

I'd like to move a drive letter from the normal folder string of drive letters to the "Favorites"
In the screen shot below, I would like to move drive letter R: to "Favorites". The key here is "Move". I do not want to see it under "This PC"

Folder View

Bob Gregory

The NoDrives registry setting can be used to hide drives from File Explorer and also works in the Opus folder tree:

https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-2000-server/cc938267(v=technet.10)?redirectedfrom=MSDN

Thank you Leo. I will give that a try.

Sorry, I think I was incorrect. It only affects what you see under This PC in the file display, and not the folder tree.

I don't think there is currently a way to hide a drive from the folder tree, other than by removing the drive letter from it entirely (which is not what you want for the C:\ drive).