Component Object Model (COM) Error – TPM_E_PCP_RAW_POLICY_NOT_SUPPORTED 0x80290421

In this post, you’ll learn about the error “TPM_E_PCP_RAW_POLICY_NOT_SUPPORTED 0x80290421” that is returned when working with COM based APIs or libraries in Windows.

COM Error Message

TPM_E_PCP_RAW_POLICY_NOT_SUPPORTED 0x80290421

What is COM?

Microsoft’s COM stands for Component Object Model. Component Object Model (COM) is a networked, object-oriented framework for building interoperable binary software components.   Microsoft’s OLE (compound documents), ActiveX (Internet-enabled components), and other products are built on the COM base technology.

Error Description

Below is the description of this COM Error.

This key has a raw policy so the KSP can’t authenticate against it.

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