Deploy app Script to rename a system file

Hi,

To install an application, I need to create a script that renames DLL.

By default, on this DLL, only "TrustedInstaller" is "owner", same for the rights. 

So I create a script as an application in SCCM, this script do the account "SYSTEM" owner, and gives Full Control to SYSTEM on thisL. However, this is not working, and I need your help if possible.

Here is my script:

takeown /F C:\Windows\System32\d3d11.dll

echo y| cacls c:\Windows\System32\d3d11.dll /G ADMINISTRATORS:F SYSTEM:F

REN C:\Windows\System32\d3d11.dll d3d11.old

Then I start the deployment of this application with SCCM and I ask to run with the system account.

The first line seems to work, because after execution through SCCM, I can see the Owner of the file is "System".

However, rights (or permissions) are not changed, and the DLL is not renamed.

This script works when I run it "by hand", but does not work on deployment via SCCM.

Have you any idea ?

Thank you all!