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Número de artículo: 000143337


TPM Must Be Cleared Before Using A Deployment Task Sequence

Resumen: How to Disable Trusted Platform Module Auto provisioning.

Contenido del artículo


Síntomas


TPM for BitLocker

Deployment task sequences (such as Dell Client Configuration Toolkit (CCTK)) that attempt to prepare the TPM for BitLocker during deployment will fail if the TPM ownership has already been taken. This is most often seen in systems that were previously deployed and are being reimaged to be sent out to new users.

The TPM must be cleared manually in the BIOS or in the Operating System (OS) before running the task sequence. If the TPM is cleared from within the OS and the system is running Windows 10, the TPM auto provisioning must be disabled or Windows will immediately take ownership again.

The steps below can be followed to disable auto provisioning.

  1. Click Start and type powershell in the search box.
  2. Right-click PowerShell (x86) and select Run as admin.
  3. Type the following PowerShell command Disable-TpmAutoProvisioning and hit Enter.
  4. Confirm the result AutoProvisioning : Disabled (Figure 1, English only):

    AutoProvisioning : Disabled PowerShell setting
    SLN305352_en_US__1TPM_Clear_AutoProvision_ASM_01
    Figure 1
     
  5. Click Start and type tpm.msc in the search box, then hit Enter.
  6. In the right-side Actions pane, select Clear TPM…
  7. Reboot and hit F12 to proceed with clearing when prompted.

Propiedades del artículo


Producto afectado

Security, Software

Fecha de la última publicación

21 feb 2021

Versión

3

Tipo de artículo

Solution