What is your target goal and target system configuration...? It is not a surprize that boot and data partitions are "equipted" with different set of rights. Your question is legal one, but very difficult to explain for people outside the Microsoft design team. Perhaps Mark Russinowich book (MSPRESS, 6th Edition) on internals may touch this detailed information. Regards Milos

Hi In Windows 7 SP1, I noticed that the ACLs of the root directory of a logical partition (D:) formatted NTFS are different from those of the root directory of the system partition (C:): C:\Windows\system32>icacls c:\ c:\ BUILTIN\Administrators:(F) BUILTIN\Administrators:(OI)(CI)(IO)(F) NT AUTHORITY\SYSTEM:(F) NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(F) BUILTIN\Users:(OI)(CI)(RX) NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(M) NT AUTHORITY\Authenticated Users:(AD) Etichetta obbligatoria\Livello obbligatorio alto:(OI)(NP)(IO)(NW) Processing is complete for 1 file. Processing failed for file 0 C:\Windows\system32>icacls d:\ d:\ BUILTIN\Administrators:(F) BUILTIN\Administrators:(OI)(CI)(IO)(F) NT AUTHORITY\SYSTEM:(F) NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(F) NT AUTHORITY\Authenticated Users:(M) NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(M) BUILTIN\Users:(RX) BUILTIN\Users:(OI)(CI)(IO)(GR,GE) Processing is complete for 1 file. Processing failed for file 0 Why? If I were to move, in the logical partition, the users profiles (except the default profile) and the public directory, should I also change its ACLs to get a stable, secure and coherent or not? Thanks Bye Balubeto

What is your target goal and target system configuration...? It is not a surprize that boot and data partitions are "equipted" with different set of rights. Your question is legal one, but very difficult to explain for people outside the Microsoft design team. Perhaps Mark Russinowich book (MSPRESS, 6th Edition) on internals may touch this detailed information. Regards Milos Really, I only wanted to know if these differences are caused solely from the partition type or if these work even on other levels of the system and users security. Thanks Bye Balubeto

Hi, These differences are caused by system and current user account. Icacls http://technet.microsoft.com/en-us/library/cc753525(v=ws.10)Ivan-Liu TechNet Community Support

Hi, These differences are caused by system and current user account. Icacls http://technet.microsoft.com/en-us/library/cc753525(v=ws.10) Ivan-Liu TechNet Community Support If I create, in the logical partition, the users profiles (with the exception of the default profile) and if I do move the public directory structure on this partition, I should not change the ACLs of this partition to obtain a stable, secure and consistent system . Right? Thanks Bye Balubeto

I'm waiting for an answer. By chance, you are doing some tests before answering? Thanks ByeBalubeto

Hi, These differences are caused by system and current user account. Icacls http://technet.microsoft.com/en-us/library/cc753525(v=ws.10)Ivan-Liu TechNet Community Support

Hi, These differences are caused by system and current user account. Icacls http://technet.microsoft.com/en-us/library/cc753525(v=ws.10) Ivan-Liu TechNet Community Support If I create, in the logical partition, the users profiles (with the exception of the default profile) and if I do move the public directory structure on this partition, I should not change the ACLs of this partition to obtain a stable, secure and consistent system . Right? Thanks Bye Balubeto