TPM ManfactureCertificates is null.

Question

TPM ManfactureCertificates is null.

Heng Yu Shen 0

Device: Surface Laptop 7th Gen (15")

OS: Windows 11 24H2 SN:0F3D3M324283HJ

We are encountering an issue where the TPM ManufactureCertificates is null, and "Ready for Attestation" is false. As a result, Autopilot provisioning fails, showing the error: "TPM attestation timed out."

Could you please help us investigate and resolve this issue?

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Justin Osborne 0 Reputation points

2025-08-04T21:19:45.6366667+00:00

We have also started having issues, but ours are with Surface Pro 11s. We have some models manufactured earlier this year that worked fine; however, two newer ones are having issues.

2 answers

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Justin Osborne 0 Reputation points

2025-08-04T21:19:45.6366667+00:00

We have also started having issues, but ours are with Surface Pro 11s. We have some models manufactured earlier this year that worked fine; however, two newer ones are having issues.

Answer 1

Hello Heng,

Thank you for reaching out to Microsoft Community, Regarding on you issue/concern "TPM ManfactureCertificates is null". Did you try to check TPM Firmware and BIOS?

you can Update BIOS/UEFI to the latest version from the Surface support site (https://support.microsoft.com/en-us/surface/download-drivers-and-firmware-for-surface-09bb2e09-2a4b-cb69-0951-078a7739e120) and Update TPM firmware if available, (https://support.microsoft.com/en-us/windows/update-your-security-processor-tpm-firmware-94205cbc-a492-8d79-cc55-1ecd6b0a8022) Microsoft has released TPM firmware updates for Surface devices in the past.

Ensure TPM is enabled in BIOS and set to Discrete or Firmware TPM (fTPM) depending on your device.

Please let me know if it works. I await your response.

Warm regards,

JayMark.D | Microsoft Community Support Specialist

Heng Yu Shen 0 Reputation points

2025-08-06T00:51:26.72+00:00

Thank for your response,Jay!

I have updated BIOS, but still encountered this issue.

and also no any TPM option in UEFI

Answer 2

Barb Bowman 78,180 MVP Volunteer Moderator

@Heng Yu Shen - can you please open a business support case. They know about SP11, but no mention of other devices

@Justin Osborne https://learn.microsoft.com/en-us/autopilot/known-issues - please also open a support case.

https://learn.microsoft.com/en-us/surface/surface-support-portal

Heng Yu Shen 0 Reputation points

2025-08-08T03:25:28.3166667+00:00

Thank you Bard, I have been submitted, request: 2508040030000371

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TPM ManfactureCertificates is null.

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