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Comment by pgrote | Hacker News Reader

We use refurbished HP Xeon Workstations, Z240s, etc. and they only support TPM 1.2 and cannot be upgraded to TPM 2.0 according the what I can learn from HP's online support.

Unless I am missing something, our machines will not run Windows 11. It seems this will occur with many people using refurbished machines. So odd.

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Chances are those CPUs have the Intel PTT which is a fully compliant TPM 2.0 module running in the Intel Management Engine firmware. AMD has a similar feature called fTPM. You should be able to enable that in the BIOS/UEFI. If there's no BIOS setting for that you may be out of luck unless HP releases an update.

>TPM

>Trusted Computing Group TPM Specification Version 1.2 (TPM 2.0 via Firmware Update)

https://support.hp.com/us-en/document/c04892038

Unless I’m mistaken, what I’ve read is that Win11 actually supports TPM 1.2 but they’re saying that to be “logo certified”, new machines must come with TPM 2.0

Edit: apparently that was true but now they’re backpedaling and saying “TPM 2.0 is a hard requirement”, thank you for the reply

No, they retracted that soft floor.

Currently: TPM 2.0 is mandatory. AND Intel CPUs >=8th gen OR >=Zen+.

Microsoft announced that they'll publish a post soon with the reasoning behind all that.

Won't the reason be SafetyNet certification for Android DRM?

The TPM part maybe, but why the 8th gen intel & zen+ and newer requirement?

No idea about the CPUs.

Hm. Fair enough. So it hard requires 2.0 now

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