Can not make registry changes.

I've concluded that anyone who's search ends up here:
Add or Remove Duplicate Drives in Navigation Pane in Windows 10 General Tips Tutorials
has probably ended up in a number of other places which make the same conclusions.
I have no reason to doubt that my Nav pane duplicates should be easily deleted with these registry changes:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\DelegateFold ers\{F5FB2C77-0E2F-4A16-A381-3E560C68BC83}]andHKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpa ce\DelegateFolders\{F5FB2C77-0E2F-4A16-A381-3E560C68BC83}]

My problem is that I can not edit my registry to make these key changes. I can not make a permissions change that sticks and even if all reports indicate I have, I can not merge/import the .reg keys.

Interestingly, I CAN
merge the keys into DelegateFolders that allow me to ADD folders...but not remove.

The (T:\) drive in the accompanying screen shot is the only external USB currently turned on.

IDEAS?
Kevin

T-Drive listed 3 times.

Arent those just Quick access shortcuts that can be deleted

Quick Access is closed. Compare the two screenshots. The dupes are showing under "This PC".

Okay, I see that now. Yes the fix is usually to delete the registry entries you mentioned. Are you not able to edit anything in the registry or only those entries?

I KNOW what they are. Duplicates of the T-Drive.

Sorry, Jack. My patience with this running very low...sorry I snapped. You were only trying to help.
Kevin