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Intel I226-T1 network adapter DOES NOT support PCR7 binding

alexwu999
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Hi Support,

With Intel I226-T1 network adapter installation, I find some event logs on my Windows 11 24h2.

1)  The signature contained in the EFI_SIGNATURE_DATA structure from the TCG Log OS Loader Authority event could not be found in the verified certificate chain for the boot manager.

2)BitLocker cannot use Secure Boot for integrity because the expected TCG Log entry for variable 'CurrentPolicy' is missing or invalid.

3)BitLocker determined that the TCG log is invalid for use of Secure Boot. The filtered TCG log for PCR[7] is included in this event.

 

on "System Information", I found

1) PCR7 Configuration Binding Not Possible

2) Automatic Device Encryption Support Reasons for failed automatic device encryption: PCR7 binding is not supported, Un-allowed DMA capable bus/device(s) detected.

 

I've tried upgrade my BIOS to the latest, Intel I226-t1 driver to the latest, also upgrade Microsoft UEFI CA to 2023, but, it doesn't make any sense.

I removed the adapter from my computer, then everything goes well... no warning logs, no PCRR7 message...  

Any help would be greatly appreciated.

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