TPM

1. Check TPM chip version

The following is only applicable for Dell computers.

Enter the following commands at a Command Prompt with administrative privileges.

WMIC.exe /namespace:\\root\cimv2\security\microsofttpm path win32_TPM get /value
powershell.exe Get-CimInstance -Class Win32_TPM -Namespace "root\cimv2\security\microsofttpm"
powershell.exe Get-Tpm  (1)

1	Windows 8.1 and later.

Check if TPM chip can be upgraded to 2.0.
- Check ManufacturerID is 1464156928 (1.2 mode) or 1314145024 (2.0 mode).
- Check ManufacturerVersion is 5.81 (1.2 mode) or 1.3 (2.0 mode).

2. Update TPM chip

Backup the OS disk with CloneZilla.
Optional: Update the BIOS.
Optional: Decrypt the operating system drive.
Note: Make sure Trusted Platform Module Management shows The TPM is not ready for use.
Clear the TPM chip if Trusted Platform Module Management shows The TPM is ready for use.
Run the DellTpm2.0_Fw1.3.2.8_V1_64.exe file with administrative privileges.
Click OK.
Click OK to confirm.
Click OK to continue.
Turn on the TPM chip if Trusted Platform Module Management shows The TPM is not ready for use (this is the case when the TPM chip was cleared using the BIOS).
Optional: Encrypt the operating system drive.

3. Clear TPM chip

There are two ways to clear the TPM chip. One is through the BIOS, the other is through Trusted Platform Module Management. However, when using TPM Management, TPM Auto Provisioning needs to be disabled.

3.1. BIOS

Enter BIOS settings.
Select Security > TPM 1.2 Security.
Check Clear.
Click Yes to confirm.
Click Exit.

3.2. Windows

Enter the following commands at a Command Prompt with administrative privileges.
```
powershell.exe Disable-TpmAutoProvisioning -OnlyForNextRestart
```
Start Trusted Platform Module Management (tpm.msc) with administrative privileges.
Select Action > Clear TPM.
Click Restart.
Click Close.
Optional: Press F12 to clear the TPM chip.

4. Turn on TPM chip

4.1. BIOS

Enter BIOS settings.
Select Security > TPM 2.0 Security.
Choose Enabled.
Click Apply.
Uncheck Save as Custom User Settings.
Click OK.
Click Exit.

TPM

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