How can I delete the account unknown (S-1-15-3-4096)?

Original title: account unknown (S-1-15-3-4096)

What is account unknown (S-1-15-3-4096) and how it can be removed!

"S-1-15-3-4096" security principle is built into account.  Microsoft should give it a name, description, and better explain.  Darkness is not good security.

Windows, Vista, defines four integrity levels: low (SID: S-1-16-4096), medium (SID: S-1-16-8192), high (SID: S-1-16-12288) and system (SID: S-1-16-16384).
According to my experience having the security principle (S-1-16-4096) with rights to Favorites allows an 'IE' process mode in protected low integrity to add favorites.  (Adding integrity to records for access must be carefully examined).
Otherwise, you must do one of them to add a favorite to the Internet zone:
-Launch IE as an administrator
-put the site on the zone Internet
-Disable "Protected Mode" in the Internet zone
All things I would recommend against because you lose some protections.
You can manually add the principle through the file properties, use ICACLS, powershell or VBScript.
Example of Windows 8 system permissions:
S-1-15-3-4096 favorites: (OI) (CI)(RX,W,DC)
NT AUTHORITY\SYSTEM: (I) (OI) (CI) (F)
BUILTIN\Administrators: (I) (OI) (ci) (F)
domain\id: (I) (OI) (ci) (F)
Mandatory Label\Low mandatory Level: (OI) (CI) (NW)
Here are the ICACLS commands: (added)

How to add Windows 7 system:
ICACLS [C:\Path\Favorites] /setintegritylevel (CI) (OI) low/t
How to add for Windows 8 system:
ICACLS [C:\Path\Favorites] / Grant * S-1-15-3-4096: (OI) (CI)(RX,W,DC) /setintegritylevel (CI) (OI) low/t
Win 8 has some UAC changes, I think that is the motor adding the principle of security.

Tags: Windows

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