Windows 11: a bug prevents the OS from detecting the TPM 2.0 chip on AMD processors


 If your PC is equipped with an AMD processor, Windows 11 may inform you that it does not have the TPM chip, even if this statement is false. Many users have reported this bug on the Microsoft forums, which seems to particularly affect the Ryzen 7 5800X3D. Problem: No fix seems planned at the moment.

More than a year after its release, the famous TPM chip continues to give Windows 11 users a hard time. In addition to preventing those whose PC is not equipped with it from installing the operating system, this one causes from time to time some very annoying bugs. And precisely, a new one is talking a lot about him at the moment on Microsoft's self-help forums. If you are equipped with an AMD processor, you are even potentially affected.

Indeed, as reported by our colleagues from Neowin, several users report that Windows no longer detects their TPM chip, even though it is present in their installation. The testimonials have this in common that almost all of them mention having an AMD chip. In addition, one of them seems particularly affected by the problem: the Ryzen 7 5800X3D. One of Neowin's readers even explains that he had no problem with his old 5800X processor, before switching to the 5800X3D.


If we find a few Intel chips among the testimonials, it is AMD processors that are mainly affected by this strange bug. For now, Microsoft is apparently aware of the issue, as evidenced by this bug report: “TPM attestation for AMD platforms with ASP TPM firmware may fail with error code 0x80070490 on Windows 10 and Windows 11 systems. There are currently no updates available to resolve this issue. »

Unfortunately, as the latter indicates, Microsoft does not yet offer a solution. On the side of AMD, we are still awaiting an official communication. In other words, the only possible solution for the moment is to equip yourself with an external TPM module, to be integrated into your motherboard. This bug is also reminiscent of the time when Microsoft deployed a Windows 11 update on non-compatible PCs.