objectAn entity such as a file, folder, shared folder, printer, or Active Directory object, described by a distinct, named set of attributes.
Object identifier (OID)A number that identifies an object class or attribute. Object identifiers (OIDs) are organized into an industry-wide global hierarchy.
object protection levelThe integrity level of an object, stored in a token or an objectâs system access control list (SACL).
OEM Preinstallation KitA set of tools, documentation, and samples that enable OEMs to preinstall Windows efficiently on new computers according to the terms of the OEM Licensing…
OfflineWhen computers and other devices are not connected to the network.
one-way trustA trust relationship between two domains in which only one of the two domains trusts the other domain.
one-way trust relationshipA trust relationship between two domains in which only one of the two domains trusts the other domain.
OnlineWhen computers and other devices are connected to the network.
oobe.xml fileA content file that can be used to store content to display in the customizable areas of Windows Welcome, Welcome Center, and the Get Connected Wizard.
operating system volumeA volume that contains an operating system (for example, Windows Vista) that can be loaded by Windows Boot Manager.
Operation Masters (OM)AD services that manage requests for specific information changes at either the forest or the domain level.
OPKA set of tools, documentation, and samples that enable OEMs to preinstall Windows efficiently on new computers according to the terms of the OEM Licensing…
organization claimA claim in intermediate or normalized form within an organization's namespace.
Organizational UnitAdministration Boundary, container designed as object repositories. OU contains AD objects and their properties, and data, provide groupings that can be…
Organizational unit (OU)A container object that is an Active Directory administrative partition. OUs can contain users, groups, resources, and other OUs.
OU (organizational unit)An Active Directory container object used within domains. An organizational unit is a logical container into which users, groups, computers, and other…
Over The ShoulderA version of elevation prompt that allows an administrator to enter administrative credentials to allow a process to run with the full access token of the…
OwnerThe only security principal who has an inherent right to allow or deny permission to access an object.
owner passwordA password that the user sets when the Trusted Platform Module (TPM) is enabled.