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nekosan54085's avatar
nekosan54085
Copper Contributor
Sep 04, 2023

Security Processor (TPM) randomly disappears and reappears on Device Security page

In the Windows 11 Security app, on the 'Device Security' page, the Security Processor (TPM) disappears and/or reappears seemingly randomly.

 

I am running 22H2, Build 22621.2215

 

For instance, these screen shots were taken a few minutes apart, with no reboot or settings altered in between.

 

(Device security) Security processor missing(Device security) Security processor present(Security processor details) Security processor missing(Security processor details) Security processor present

security
    • Jochen_H's avatar
      Jochen_H
      Copper Contributor
      Oct 03, 2023

      Exactly the same behavior I observe since upgrading from Windows 10 to Windows 11 (by the way, it behaves exactly the same with the upgraded Windows 11 as with a freshly installed Windows 11)

       

      Under Windows 10, there were never any problems with the display or detection of the TPM on my AMD processor. Since I started using Windows 11 with the same hardware, the entry 'Security Chip' disappears in the Security app under 'Device Security'. Accordingly, the device security rating changes from 'Your device meets the requirements for enhanced hardware security' to 'Standard hardware security not supported'.

       

      A few moments later, the TPM entry reappears, while it may disappear again a bit later.

       

      My TPM chip has similar details as the one from nekosan54085 (AMD, manufacturer version 3.84.0.5, spec 2.0, ppi 1.3, sub version 1.38, client spec 1.01).

       

      Windows Build: Windows 11, 22H2, Build 22621.2361)

       

      Since it worked in Windows 10, i believe it's not an AMD problem, but a Windows 11 bug.

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