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T2121
Fanfold Paper
Posts: 4
Registered: ‎12-14-2018
Location: GB
Views: 380
Message 1 of 1

X230 Laptops will not clear TPM!!

Got a very strange issue here.. clearing the TPM via Powershell and physicalpresencerequest nothing seems to work.


On the X250/X240 I would normally use (Get-WmiObject -Namespace ROOT\CIMV2\Security\MicrosoftTpm -Class
Win32_TPM).SetPhysicalPresenceRequest(5)

 

However nothing seems to work on the X230, after reboot, the TPM still shows as OWNED, ACTIVATED, and ENABLED, despite having been cleared via the above.

The return code is 0 of course so it looks like it has been successful., but it just seems to totally ignore the WMI/Powershell request.

Is there something I am missing with this model? Could it be it requires a password to change the TPM? This would mean an error return though, not a '0' and success.

 

Im at a loss here!

 

Both physicalpresence settings are DISABLED in the Bios, so it should not be blocked from that perspective.


Any help, very much appreciated.

 

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