Invoke-HPTPMDowngrade

Downloads and applies the HP SP94937 softpaq to downgrade a TPM from 2.0 to 1.2.

Property	Value
Module	OSD
Platform	WinPE (amd64 / arm64)

Description

Downloads softpaq SP94937 using HPCMSL, extracts it, and runs TPMConfig64.exe with the '-a 1.2' argument to downgrade an Infineon TPM from firmware version 2.0 to 1.2. Disables Virtualization Technology (VTx) in the BIOS via Set-HPBIOSSetting before applying the firmware change.

Syntax

Invoke-HPTPMDowngrade [[-WorkingFolder] <Object>] [-ProgressAction <ActionPreference>] [<CommonParameters>]

Parameters

Parameter	Type	Required	Description
-WorkingFolder	Object	False	The folder path where the softpaq EXE will be downloaded and extracted. Defaults to $env:TEMP\TPM if not specified.

Examples

Example

Invoke-HPTPMDowngrade
Downloads SP94937 to $env:TEMP\TPM and downgrades the Infineon TPM to spec 1.2.