Back in 2023, Neowin reported on TPM attestation failures on AMD Ryzen PCs that had been known since December 2022 but were still around at the time, even several months later. We came to know of the bug after some of our forum members alerted us. On the issue notes, Microsoft wrote, TPM attestation for AMD platforms with ASP firmware TPM might fail with error code 0x80070490 on Windows systems. This issue is resolved on later versions of AMD firmware. Consult with device manufacturers and...
