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Initialize-Tpm

Windows Server 2012 R2 and Windows 8.1

Updated: October 17, 2013

Applies To: Windows 8.1, Windows PowerShell 4.0, Windows Server 2012 R2

Initialize-Tpm

Performs part of the provisioning process for a TPM.

Syntax

Parameter Set: Default
Initialize-Tpm [[-AllowClear]] [[-AllowPhysicalPresence]] [ <CommonParameters>]




Detailed Description

The Initialize-Tpm cmdlet performs part of the provisioning process for a Trusted Platform Module (TPM). Provisioning is the process of preparing a TPM to be used. You may need to perform other steps to fully provision a TPM.

For more information on TPM, see the Trusted Platform Module Technology Overview in the Technet library at http://technet.microsoft.com/en-us/library/jj131725.aspx.

Parameters

-AllowClear

Indicates that the provisioning process clears the TPM, if necessary, to move the TPM closer to complying with Windows Server® 2012 standards.


Aliases

c

Required?

false

Position?

2

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-AllowPhysicalPresence

Indicates that the provisioning process may send physical presence commands that require a user to be present in order to continue.


Aliases

p

Required?

false

Position?

3

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

<CommonParameters>

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see    about_CommonParameters.

Inputs

The input type is the type of the objects that you can pipe to the cmdlet.

  • SwitchParameter

Outputs

The output type is the type of the objects that the cmdlet emits.

  • TpmProvisioningObject

    This cmdlet returns a TpmProvisioningObject object that includes the following information:


    -- TpmReady. Whether the TPM is complies with Windows Server® 2012 standards.
    -- RestartRequired. Whether the computer requires a restart to continue the provisioning process.
    -- ShutdownRequired. Whether the computer must be shut down to continue the provisioning process.
    -- ClearRequired. If this has a value of True, you must import an owner authorization value or remove the owner authorization value.
    -- PhysicalPresenceRequired. Whether a person must be at the computer during restart to continue the provisioning process.


Examples

Example 1: Initialize a TPM

This command initializes a TPM. The ForceClearAllowed parameter means that the owner authorization value needs to be imported or reset in order for provisioning to continue. The PhysicalPresenceAllowed parameter means that a user must be present during a restart to continue the process.

The cmdlet returns an object with information about the state of the provisioning process.


PS C:\> Initialize-Tpm -ForceClearAllowed -PhysicalPresenceAllowed
TpmReady                 : False
RestartRequired : True
ShutdownRequired : False
ClearRequired : True
PhysicalPresenceRequired : True

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