The instructions in this section describes the process for clearing the TPM's of Dell computers, if you have a different computer, please refer to the manufacturer's manual for instructions on how to access the BIOS setup menu for that computer and clearing its TPM chip.

Remember that when the TPM is cleared, all the keys you previously had stored on your vault will be lost. To recover your previous, you will need to restore your keys from an archive.

Steps for Clearing the TPM:

1. Power off your computer, then turn on computer, during the startup screen (see Figure 9.16), press F2 to go to the BIOS setup menu.
2. On the BIOS menu, see Figure 9.17, using the arrow keys go to Security settings category, press the <Enter> key. Select TPM Activation and on the right side of the menu select Clear.
3. When the TPM gets cleared, the TPM Activation defaults to Deactivate, go to TPM Activation and select Activate.
4. You have just cleared the TPM hardware on the BIOS, now you save the configuration, by press <ESC> key, choose to Save/Exit, see Figure 9.18, then the computer will be restarted.