Windows PowerShell command on Get-command Unblock-Tpm
MyWebUniversity

Windows PowerShell command on Get-command Unblock-Tpm

NAME

Unblock-Tpm

SYNOPSIS

Resets a TPM lockout.

SYNTAX

Unblock-Tpm [[-OwnerAuthorization] ] []

Unblock-Tpm -File []

DESCRIPTION

The Unblock-Tpm cmdlet resets a Trusted Platform Module (TPM) lockout. TPM locks itself to prevent tampering or

attack. This is called a lockout. To end a TPM lockout, you must provide a valid owner authorization value. You can enter an owner authorization value or specify a file that contains the value. If you do not provide a value, the cmdlet attempts to use a value stored in the registry. For more information on TPM, see the Trusted Platform Module Technology Overview

(http://technet.microsoft.com/en-us/library/jj131725.aspx) in the Technet library.

PARAMETERS

-File

Specifies a file that contains the current owner authorization value for the TPM. You can use the TPM Management Console to create this file. Required? true Position? named Default value none Accept pipeline input? false Accept wildcard characters? false

-OwnerAuthorization []

Specifies the current owner authorization value for the TPM. Required? false Position? 2 Default value none Accept pipeline input? true (ByValue) Accept wildcard characters? false This cmdlet supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, WarningVariable, OutBuffer, PipelineVariable, and OutVariable. For more information, see about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216).

INPUTS

OUTPUTS

TpmObject This cmdlet returns a TpmObject object contains the following information:

-- TpmReady. Whether a TPM complies with Windows Serverr 2012 standards.

-- TpmPresent. Whether there is a TMP on the current computer.

-- ManagedAuthLevel. The level at which the operating system manages the owner authorization. Possible values

are Legacy, Balanced, and Full.

-- OwnerClearDisabled. Whether TPM can be reset. If this value is True, the TPM cannot be reset through the

operating system by using the owner authorization value. If this value is False, the TPM can be reset through the operating system.

-- AutoProvisioning. Whether the computer can use auto-provisioning. Possible values are NotDefined, Enabled,

Disabled, and DisabledForNextBoot.

-- LockedOut. Whether a TPM is locked out.

-- SelfTest. Information returned by a test that TPM runs.

NOTES

Be sure to understand the protection logic TPM uses. The TPM allows at least one attempt to reset the TPM lockout by using the owner authorization value. For more information, see the Reset the TPM Lockout

(http://technet.microsoft.com/en-us/library/dd851452.aspx) topic in the Technet library.

Example 1: Reset a lockout

PS C:\>Unblock-Tpm -OwnerAuthorization "vjnuW6rToM41os3xxEpjLdIW2gA="

This command resets a TPM lockout. The command specifies the owner authorization value vjnuW6rToM41os3xxEpjLdIW2gA=.

RELATED LINKS

Online Version:

Clear-Tpm

Get-Tpm

Initialize-Tpm



Contact us      |      About us      |      Term of use      |       Copyright © 2000-2019 OurUNIX.com ™