RestartPending: True after countless restarts and updates

Hello,

I am experiencing a TPM 2.0 / TPM attestation issue on my Windows 11 PC.

My hardware and configuration:

• Motherboard: MSI Z270 Gaming M3
• CPU: Intel Core i7-7700K
• TPM: Intel PTT (firmware TPM 2.0)
• BIOS mode: UEFI
• Secure Boot: enabled
• Operating system: Windows 11
• TPM 2.0 is enabled in BIOS
• BIOS is updated to the latest available version for my motherboard
• Intel Management Engine / MEI driver has also been updated
• Windows is fully updated

Windows PowerShell Get-Tpm reports:

TpmPresent : True TpmReady : True TpmEnabled : True TpmActivated : True TpmOwned : True RestartPending : True ManufacturerIdTxt : INTC ManufacturerVersion : 11.8.50.3399 ManufacturerVersionFull20 : 11.8.50.3399 ManagedAuthLevel : Full AutoProvisioning : Enabled LockedOut : False

The main problem is that RestartPending remains True even after multiple complete system restarts.

The TPM is detected by Windows and appears to be initialized correctly, but TPM attestation / Device Health Attestation is still not working correctly.

Windows Security / Device Security also indicates that the TPM attestation state is not working as expected. I am specifically trying to resolve the TPM attestation / PCR-related issue, not simply enable TPM.

I have already:

• verified that TPM 2.0 is enabled;
• verified that Windows detects the TPM;
• restarted the PC multiple times;
• checked UEFI/Secure Boot configuration;
• updated the BIOS;
• updated Intel MEI;
• checked TPM status with PowerShell.

Could you please help me determine:

1. Why Get-Tpm permanently reports RestartPending : True?
2. Whether this indicates a TPM provisioning or firmware problem.
3. Whether the Intel PTT TPM needs to be reprovisioned or reset.
4. Whether there is a Windows component/service responsible for TPM attestation that is failing.
5. Whether there is a way to diagnose the exact reason why TPM attestation is failing.
6. Whether the PCR7 / measured boot state can be diagnosed from Windows logs or another Microsoft diagnostic tool.
7. Whether this is a known compatibility issue with Intel PTT on this platform.

I would appreciate specific diagnostic steps or commands that can identify the underlying cause rather than simply telling me to enable TPM, because TPM is already enabled and detected by Windows.

Thank you.