Home windows 11 has a baffling bug meaning it’s not detecting TPM with some processors – and subsequently not recognizing the host PC as supporting the OS – with one CPU hit badly specifically, the favored Ryzen 7 5800X3D.
Neowin (opens in new tab) identified a complete bunch of Home windows customers who’re having a difficulty whereby they’re failing ‘TPM attestation’ with the outcome that the PC will not be supported for operating Home windows 11.
That is regardless of the system getting the all-clear when it comes to the TPM module being detected as ‘prepared to be used’.
As famous, that is taking place to varied Ryzen processors (and even Intel fashions in outlying instances), and the 5800X3D appears to be extra affected than others. In some instances, customers report that with a unique CPU, the TPM requirement is handed with no issues.
One one that encountered the bug writes (opens in new tab): “After upgrading my CPU from Ryzen 5 2600 to Ryzen 7 5700X Home windows Safety Chip App reviews ‘Attestation: Not Supported’ however ‘Reminiscence: Prepared’. Within the TPM Console it reveals that the TPM Module is Prepared to be used.”
They add: “After I swap again to my outdated Ryzen 5 2600 all the pieces works.”
Evaluation: Come on Microsoft, AMD – this isn’t ok
This one’s a little bit of a headscratcher for certain, however we now have acquired official phrase from Microsoft on the bug.
In a identified difficulty filed beneath Home windows Autopilot issues, the software program big notes (opens in new tab): “TPM attestation for AMD platforms with ASP firmware TPM might fail with error code 0x80070490 on Home windows 10 and Home windows 11 programs. There’s presently no replace accessible to resolve this difficulty.”
Now, Home windows Autopilot is a tech utilized by IT groups to deploy a number of Home windows PCs, so not one thing the house consumer will encounter. However evidently, there are customers on the market who’re getting brick-walled by this bug when trying to put in Home windows 11 with sure CPUs.
It’s significantly disappointing to listen to that there’s no decision, or extra to the purpose, proof that Microsoft is not less than investigating what’s occurring right here. Neither have we acquired any phrase from AMD that it’s trying into the gremlin or attempting to discern what’s up.
For affected PCs, it appears the one doable treatment is to put in a separate TPM module and never depend on the processor’s built-in one. To say that’s removed from ideally suited is an understatement.
As one other affected consumer on Reddit (opens in new tab), who was upgrading from a 5800X – which labored simply high-quality with Home windows 11 – to a 5800X3D put it: “I’ve searched on-line and there may be bunch of individuals with 5800X3D having very same drawback and nobody has any thought why or the way to repair it. Some did purchase exterior TPM module, however why the hell would I try this when Ryzen 5800 have one onboard?”
It’s an excellent level certainly. One suggestion we’ve seen (within the above Reddit thread) as a workaround for these upgrading to a brand new CPU which is hamstrung by a TPM attestation fault goes as follows. Put the outdated CPU again in, disable TPM, clear the CMOS, reinstall the brand new processor after which flip TPM again on. Take that as a little bit of a wild punt at nighttime, although, however one upgrader claims it labored for them.
And it’s extra of a touch than Microsoft or AMD have given us thus far, that’s for certain.
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