Home windows 11 has a baffling bug meaning it’s not detecting TPM with some processors – and due to this fact 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 consequence that the PC isn’t supported for working 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 distinct CPU, the TPM requirement is handed with no issues.
One one who 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 studies ‘Attestation: Not Supported’ however ‘Reminiscence: Prepared’. Within the TPM Console it reveals that the TPM Module is Prepared to be used.”
They add: “Once I change again to my previous 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 positive, however we’ve acquired official phrase from Microsoft on the bug.
In a recognized challenge filed underneath Home windows Autopilot issues, the software program large 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 methods. There’s presently no replace accessible to resolve this challenge.”
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 happening right here. Neither have we acquired any phrase from AMD that it’s wanting 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 splendid is an understatement.
As one other affected consumer on Reddit (opens in new tab), who was upgrading from a 5800X – which labored simply superb 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 downside and nobody has any thought why or easy methods to repair it. Some did purchase exterior TPM module, however why the hell would I do 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 previous 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 midnight, although, however one upgrader claims it labored for them.
And it’s extra of a touch than Microsoft or AMD have given us up to now, that’s for positive.