S-1-0
Null Authority
An identifier authority.

S-1-0-0
Nobody
No security principal.

S-1-1
World Authority
An identifier authority.

S-1-1-0
Everyone
A group that includes all users, even anonymous users and guests. Membership is controlled by the operating system.

S-1-2
Local Authority
An identifier authority.

S-1-2-0
Local
A group that includes all users who have logged on locally.

S-1-2-1
Console Logon
A group that includes users who are logged on to the physical console.

S-1-3
Creator Authority
An identifier authority.

S-1-3-0
Creator Owner
A placeholder in an inheritable access control entry (ACE). When the ACE is inherited, the system replaces this SID with the SID for the object's creator.

S-1-3-1
Creator Group
A placeholder in an inheritable ACE. When the ACE is inherited, the system replaces this SID with the SID for the primary group of the object's creator. The primary group is used only by the POSIX subsystem.

S-1-3-2
Creator Owner Server
This SID is not used in Windows 2000.

S-1-3-3
Creator Group Server
This SID is not used in Windows 2000.

S-1-3-4 Owner Rights
A group that represents the current owner of the object. When an ACE that carries this SID is applied to an object, the system ignores the implicit READ_CONTROL and WRITE_DAC permissions for the object owner.

S-1-5-80-0
All Services
A group that includes all service processes configured on the system. Membership is controlled by the operating system.

S-1-4
Non-unique Authority
An identifier authority.

S-1-5
NT Authority
An identifier authority.

S-1-5-1
Dialup
A group that includes all users who have logged on through a dial-up connection. Membership is controlled by the operating system.

S-1-5-2
Network
A group that includes all users that have logged on through a network connection. Membership is controlled by the operating system.

S-1-5-3
Batch
A group that includes all users that have logged on through a batch queue facility. Membership is controlled by the operating system.

S-1-5-4
Interactive
A group that includes all users that have logged on interactively. Membership is controlled by the operating system.

S-1-5-5-X-Y
Logon Session
A logon session. The X and Y values for these SIDs are different for each session.

S-1-5-6
Service
A group that includes all security principals that have logged on as a service. Membership is controlled by the operating system.

S-1-5-7
Anonymous
A group that includes all users that have logged on anonymously. Membership is controlled by the operating system.

S-1-5-8
Proxy
This SID is not used in Windows 2000.

S-1-5-9
Enterprise Domain Controllers
A group that includes all domain controllers in a forest that uses an Active Directory directory service. Membership is controlled by the operating system.

S-1-5-10
Principal Self
A placeholder in an inheritable ACE on an account object or group object in Active Directory. When the ACE is inherited, the system replaces this SID with the SID for the security principal who holds the account.

S-1-5-11
Authenticated Users
A group that includes all users whose identities were authenticated when they logged on. Membership is controlled by the operating system.

S-1-5-12
Restricted Code
This SID is reserved for future use.

S-1-5-13
Terminal Server Users
A group that includes all users that have logged on to a Terminal Services server. Membership is controlled by the operating system.

S-1-5-14
Remote Interactive Logon
A group that includes all users who have logged on through a terminal services logon.

S-1-5-15
This Organization
A group that includes all users from the same organization. Only included with AD accounts and only added by a Windows Server 2003 or later domain controller.

S-1-5-17
This Organization
An account that is used by the default Internet Information Services (IIS) user.

S-1-5-18
Local System
A service account that is used by the operating system.

S-1-5-19
NT Authority
Local Service

S-1-5-20
NT Authority
Network Service

S-1-5-32-544
Administrators
A built-in group. After the initial installation of the operating system, the only member of the group is the Administrator account. When a computer joins a domain, the Domain Admins group is added to the Administrators group. When a server becomes a domain controller, the Enterprise Admins group also is added to the Administrators group.

S-1-5-32-545
Users
A built-in group. After the initial installation of the operating system, the only member is the Authenticated Users group. When a computer joins a domain, the Domain Users group is added to the Users group on the computer.

S-1-5-32-546
Guests
A built-in group. By default, the only member is the Guest account. The Guests group allows occasional or one-time users to log on with limited privileges to a computer's built-in Guest account.

S-1-5-32-547
Power Users
A built-in group. By default, the group has no members. Power users can create local users and groups; modify and delete accounts that they have created; and remove users from the Power Users, Users, and Guests groups. Power users also can install programs; create, manage, and delete local printers; and create and delete file shares.

S-1-5-32-548
Account Operators
A built-in group that exists only on domain controllers. By default, the group has no members. By default, Account Operators have permission to create, modify, and delete accounts for users, groups, and computers in all containers and organizational units of Active Directory except the Builtin container and the Domain Controllers OU. Account Operators do not have permission to modify the Administrators and Domain Admins groups, nor do they have permission to modify the accounts for members of those groups.

S-1-5-32-549
Server Operators
A built-in group that exists only on domain controllers. By default, the group has no members. Server Operators can log on to a server interactively; create and delete network shares; start and stop services; back up and restore files; format the hard disk of the computer; and shut down the computer.

S-1-5-32-550
Print Operators
A built-in group that exists only on domain controllers. By default, the only member is the Domain Users group. Print Operators can manage printers and document queues.

S-1-5-32-551
Backup Operators
A built-in group. By default, the group has no members. Backup Operators can back up and restore all files on a computer, regardless of the permissions that protect those files. Backup Operators also can log on to the computer and shut it down.

S-1-5-32-552
Replicators
A built-in group that is used by the File Replication service on domain controllers. By default, the group has no members. Do not add users to this group.

S-1-5-64-10
NTLM Authentication
A SID that is used when the NTLM authentication package authenticated the client

S-1-5-64-14
SChannel Authentication
A SID that is used when the SChannel authentication package authenticated the client.

S-1-5-64-21
Digest Authentication
A SID that is used when the Digest authentication package authenticated the client.

S-1-5-80
NT Service
An NT Service account prefix

S-1-16-0
Untrusted Mandatory Level
An untrusted integrity level. Note Added in Windows Vista and Windows Server 2008

S-1-16-4096
Low Mandatory Level
A low integrity level.

S-1-16-8192
Medium Mandatory Level
A medium integrity level.

S-1-16-8448
Medium Plus Mandatory Level
A medium plus integrity level.

S-1-16-12288
High Mandatory Level
A high integrity level.

S-1-16-16384
System Mandatory Level
A system integrity level.

S-1-16-20480
Protected Process Mandatory Level
A protected-process integrity level.

S-1-16-28672
Secure Process Mandatory Level
A secure process integrity level.

S-1-5-80-0
All Services
A group that includes all service processes that are configured on the system. Membership is controlled by the operating system.

S-1-5-32-554
BUILTIN\Pre-Windows 2000 Compatible Access
An alias added by Windows 2000. A backward compatibility group which allows read access on all users and groups in the domain.

S-1-5-32-555
BUILTIN\Remote Desktop Users
An alias. Members in this group are granted the right to logon remotely.

S-1-5-32-556
BUILTIN\Network Configuration Operators
An alias. Members in this group can have some administrative privileges to manage configuration of networking features.

S-1-5-32-557
BUILTIN\Incoming Forest Trust Builders
An alias. Members of this group can create incoming, one-way trusts to this forest.

S-1-5-32-558
BUILTIN\Performance Monitor Users
An alias. Members of this group have remote access to monitor this computer.

S-1-5-32-559
BUILTIN\Performance Log Users
An alias. Members of this group have remote access to schedule logging of performance counters on this computer.

S-1-5-32-560
BUILTIN\Windows Authorization Access Group
An alias. Members of this group have access to the computed tokenGroupsGlobalAndUniversal attribute on User objects.

S-1-5-32-561
BUILTIN\Terminal Server License Servers
An alias. A group for Terminal Server License Servers. When Windows Server 2003 Service Pack 1 is installed, a new local group is created.

S-1-5-32-562
BUILTIN\Distributed COM Users
An alias. A group for COM to provide computerwide access controls that govern access to all call, activation, or launch requests on the computer.

S-1-5-32-569
BUILTIN\Cryptographic Operators
A Builtin Local group. Members are authorized to perform cryptographic operations.

S-1-5-21 domain -571
Allowed RODC Password Replication Group
A Domain Local group. Members in this group can have their passwords replicated to all read-only domain controllers in the domain.

S-1-5- 21 domain -572
Denied RODC Password Replication Group
A Domain Local group. Members in this group cannot have their passwords replicated to any read-only domain controllers in the domain

S-1-5-32-573
BUILTIN\Event Log Readers
A Builtin Local group. Members of this group can read event logs from local machine.

S-1-5-32-574
BUILTIN\Certificate Service DCOM Access
A Builtin Local group. Members of this group are allowed to connect to Certification Authorities in the enterprise.

S-1-5-21-domain-522
Cloneable Domain Controllers
Description:A Global group.Members of this group that are domain controllers may be cloned.

SID:S-1-5-32-575
BUILTIN\RDS Remote Access Servers
Description:A Builtin Local group.Servers in this group enable users of RemoteApp programs and personal virtual desktops access to these resources. In Internet-facing deployments, these servers are typically deployed in an edge network. This group needs to be populated on servers running RD Connection Broker. RD Gateway servers and RD Web Access servers used in the deployment need to be in this group.

SID:S-1-5-32-576
BUILTIN\RDS Endpoint Servers
Description:A Builtin Local group. Servers in this group run virtual machines and host sessions where users RemoteApp programs and personal virtual desktops run. This group needs to be populated on servers running RD Connection Broker. RD Session Host servers and RD Virtualization Host servers used in the deployment need to be in this group.

SID:S-1-5-32-577
BUILTIN\RDS Management Servers
Description:A Builtin Local group. Servers in this group can perform routine administrative actions on servers running Remote Desktop Services. This group needs to be populated on all servers in a Remote Desktop Services deployment. The servers running the RDS Central Management service must be included in this group.

SID:S-1-5-32-578
BUILTIN\Hyper-V Administrators
Description:A Builtin Local group.Members of this group have complete and unrestricted access to all features of Hyper-V.

S-1-5-32-579
BUILTIN\Access Control Assistance Operators
Description:A Builtin Local group.Members of this group can remotely query authorization attributes and permissions for resources on this computer.

SID:S-1-5-32-580
BUILTIN\Remote Management Users
Description:A Builtin Local group.Members of this group can access WMI resources over management protocols (such as WS-Management via the Windows Remote Management service). This applies only to WMI namespaces that grant access to the user.