PC owners with AMD Ryzen processors have started reporting a new bug related to the TPM module – Windows 10 and 11 no longer recognize it even if it’s enabled in the BIOS. Microsoft has confirmed the bug but hasn’t fixed it yet.
The problem affected the AMD Ryzen 5000 series processors, which was confirmed by a user’s experiment: the error appeared after replacing the AMD Ryzen 5 2600 with the AMD Ryzen 7 5700X and disappeared again after switching back to the Ryzen 5 2600 . There are confirmed incidents with the AMD Ryzen 7 5800X3D. In some cases opening, closing and restarting Windows Security helps.
The most painful mistake has become for those who actively use TPM to encrypt data – you can lose access to them if there are no backup keys, or get a non-working computer if the startup disk is encrypted. The issue may not be noticed on computers where the module is only present to meet the Windows 11 system requirements and is generally disabled in the BIOS. TPM is used in components like Windows Bitlocker and Windows Hello, and some third-party programs that have encryption capabilities.
A similar error appeared about a year ago and affected the AMD fTPM software component – then computers froze and did not work, but now the situation is a little more serious. Since Microsoft hasn’t fixed the bug yet, the workaround is the same as it was a year ago – installing a discrete TPM module, but doing so can cause you to lose access to already encrypted data, so caution is advised.