Hi I am having the same problem as OP except that when I run the command I keep getting "The system cannot find the file specified."
Here is the log (I can't upload screenshots for some reason):
Microsoft Windows [Version 10.0.26100.1301]
(c) Microsoft Corporation. All rights reserved.
C:\Windows\System32>cd /d c:\windows\system32\securityHealth\10.0.27777.1008-0
c:\Windows\System32\SecurityHealth\10.0.27777.1008-0>takeown /f SecurityHealthSSO.dll /a
SUCCESS: The file (or folder): "c:\Windows\System32\SecurityHealth\10.0.27777.1008-0\SecurityHealthSSO.dll" now owned by the administrators group.
c:\Windows\System32\SecurityHealth\10.0.27777.1008-0>icacls SecurityHealthSSO.dll /grant *S-1-5-32-544:(F)
processed file: SecurityHealthSSO.dll
Successfully processed 1 files; Failed processing 0 files
c:\Windows\System32\SecurityHealth\10.0.27777.1008-0>copy /y C:\Temp\SecurityHealthSSO.dll
The system cannot find the file specified.
c:\Windows\System32\SecurityHealth\10.0.27777.1008-0>copy /y C:\Temp\SecurityHealthSSO.DLL
The system cannot find the file specified.
c:\Windows\System32\SecurityHealth\10.0.27777.1008-0>