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# 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

```powershell
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

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


---

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