Component Object Model (COM) Error – TPM_20_E_POLICY_CC 0x802800A4

In this post, you’ll learn about the error “TPM_20_E_POLICY_CC 0x802800A4” that is returned when working with COM based APIs or libraries in Windows.

COM Error Message

TPM_20_E_POLICY_CC 0x802800A4

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.

TPM 2.0: The command code in the policy is not the command code of the command or the command code in a policy command references a command that is not implemented.