In this post, you’ll learn more about the Error CERTSRV_E_SIGNATURE_REJECTED – 0x8009480B that is returned when working with the COM-based APIs in Win32
Win32 COM Error
CERTSRV_E_SIGNATURE_REJECTED – 0x8009480B
Win32 COM Error Error Description
One or more signatures did not include the required application or issuance policies. The request is missing one or more required valid signatures.