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

8 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
  2. mario

    Hi Brian,

    I actually evaluating a toughpad FZ-G1 (FZ-G1P5625KM). It came with windows 7 (TPM 1.2)I need to install windows 10 v1607 on it. I need to upgrade the TPM to 2.0. But I can’t find the TPM 2.0 software for the Panasonic. Would you have a link for it?

    Reply
      1. Some one

        Did you share the upgrate TPM or Downgrade TPM, i guess Mario is asking to upgrade TPM 1.2 to 2.0

        Reply
  3. TDA

    What is when VTx enabled is?
    has to be disabled like on HP’s?

    Reply

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