TPM PCR Validation Error causing BitLocker Recovery at Boot

Summary: This article provides information about Trusted Platform Module (TPM) Platform Configuration Register (PCR) Validation Error causing BitLocker Recovery at Boot.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

GFX card computer does NOT use PCR7 binding and show as Binding not possible (0, 2, 4, 11).

Test Step:

  • Boot to Set up
  • Enable Secure Boot
  • Enable TPM
  • Boot to the operating system
  • Press Win + R "Cmd" run as administrator.
  • Input Command "manage-bde-protectors-get c:"

Device Manager

 

PowerShell

 

System Information

 

Cause

The dGPU (expandable cards) and its OROM/UEFI driver must be signed and measured through TPM PCR7. BIOS 1.6.0 to address the Security Vulnerability by implementing the security mechanism that follows TCG and MSFT’s requirement.

From the TCG side:

https://trustedcomputinggroup.org/wp-content/uploads/TCG_PCClient_PFP_r1p05_v23_pub.pdfThis hyperlink is taking you to a website outside of Dell Technologies.

From the Operating System side:

In Microsoft’s own documentation on BitLocker Drive Encryption

BitLocker drive encryption in Windows 10 for OEMsThis hyperlink is taking you to a website outside of Dell Technologies.

If the presence of expandable cards (Ex: GFX card) results in OROM UEFI drivers loaded by UEFI BIOS during boot, then BitLocker does NOT use PCR7 binding.

https://learn.microsoft.com/en-us/troubleshoot/windows-server/setup-upgrade-and-drivers/pcr7-configuration-binding-not-possibleThis hyperlink is taking you to a website outside of Dell Technologies.

 

Resolution

According to Microsoft information, it is expected behavior, with no recovery plan.

 

Affected Products

Precision 3571, Precision 7560, Precision 7670, Precision 7770
Article Properties
Article Number: 000204144
Article Type: Solution
Last Modified: 07 Jul 2026
Version:  7
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