Hi Igor Godinho,
Thank you for posting on the Q&A forum.
You need to be the file owner or the local administrator to run the Set-Acl cmdlet to set the permissions you list above on a file. To make a user the file owner, you can still use the Set-Acl cmdlet or run takeown.exe. You need to be the local administrator to do that.
https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/takeown
If you want to set the permissions on an OU with Set-Acl, you need to be the domain administrator.
Best Regards,
Ian Xue
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