Need TrustedInstaller permission.

go see there it's very clear
http://www.chantal11.com/2010/09/attribuer-controle-total-sur-dossier-fichier-windows-7-vista/

Hello,

Just follow the instructions in this video: https://www.youtube.com/watch?v=NsGpBKu3A90

Explanations: https://www.malekal.com/comment-retirer-les-autorisations-trustedinstaller/

PS: if you come across tutorials that instruct you to disable the TrustedInstaller service, make sure to set the startup type back to automatic.
Otherwise, you risk having issues with Windows updates.

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Please press any key to continue the disinfection...

Hello, I went to this link, here is a summary

https://www.tayo.fr/vous-avez-besoin-dune-authorisation-de-la-part-de-thrustedinstaller-aide.php

Disable TrustedInstaller

Click the Start button. In the Search programs and files box, type services.msc


The Windows services window will open. Now look for the Windows Modules Installer service.



Double-click on it, you should see the path:
C:\Windows\servicing\TrustedInstaller.exe.
Disable it.


Delete a folder You need permission..

Still as an administrator, you need to grant yourself usage rights on a folder.

Right-click on the folder in question, properties.
In the Security tab, click on Advanced. Then, in the Owner tab, click on Change and give yourself the rights.
Now, in the initial Security tab, click on the Change button and give yourself full control.
You should be able to delete the directory in question.

Otherwise, I recommend the software Unlocker that can delete any folder/file anywhere by bypassing permissions.
It can even delete files used by a software.
Regards.