TPM Attestation Not Supported after Upgrading CPU

[Jens Dittberner]

Hi, after Upgrading my CPU from Ryzen 5 2600 to Ryzen 7 5700x Windows Security Chip App reports "Attestation: Not Supported" but "Memory: Ready". In die TPM Console it shows that the TPM Module is Ready for use. The Registry Key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TPM\WMI\Endorsement\EKCertStore\Certificates is empty with the R 7 5700x but has an entry when I use my old CPU. I already tried to reset TPM, CMOS and Secureboot in Bios and in Windows TPM Console. I disabled/enabled fTPM and Secure Boot several times. Windows 10 and Windows 11 report the same. I already did

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