Downgrading Panasonic Toughbook / Toughpad units from Tpm 2.0 to 1.2 to support Windows 7 Deployments

By | February 24, 2017
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1st You must query out Panasonic equipment and machines with Tpm 2.0 set.

WMI namespace: root\CIMV2\Security\MicrosoftTpm

WQL query: SELECT * FROM Win32_Tpm WHERE NOT SpecVersion LIKE “1.2”

 

2nd You MUST ensure that AC is connected, otherwise the Tpm downgrade will fail. Here is a script I made that tosses a prompt if off AC and loops until AC is plugged in.

https://github.com/brianfgonzalez/Scripts/blob/master/ZTICheckBattery.wsf

And lastly, run the TPMFUac64.exe with the -d argument to execute the downgrade of the Tpm chipset. This will require a reboot, which you can roll into the standard reboot that occurs after the OS is applied.

* TPMFUac64.exe must be requested from your local technical support team.

/BG

4 thoughts on “Downgrading Panasonic Toughbook / Toughpad units from Tpm 2.0 to 1.2 to support Windows 7 Deployments

  1. Greg

    Where can I get the TPMFUac64.exe program? I’ve done a search an internet search but the only result is back to this page.

    Reply

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