Trusted Platform Module (TPM) Overview - KB Article - 274113

Trusted Platform Module (TPM) Overview - KB Article - 274113

Background on the TPM Security Feature

Trusted Platform Module, or TPM, is a security device that holds computer-generated keys for encryption. It is a hardware-based solution that prevents hacking attempts to capture passwords, encryption keys, and other sensitive data. The security features provided by the TPM are internally supported by:

  • Hashing
  • Random number generation
  • Asymmetric key generation
  • Asymmetric encryption/decryption

Each individual TPM has a unique signature initialized during the silicon manufacturing process that enhances the trust/security effectiveness. Every TPM must have an owner before it can be utilized. The TPM user must be physically present to take ownership. After this procedure is completed and the TPM has a unique owner, the TPM is activated.

TPM Security Feature Is Available on Select Systems

The TPM security feature is available on the following platforms:

System NameModel Number
LatitudeD410, D420, D610, D620, D810, D820
OptiPlexGX280 (Desktop and Tower only), GX620, 740, 745, 745c, 755
Dell PrecisionM20, M65, M70, M90


TPM is not a globally supported product due to certain country regulations.

  • China restricts the use of TPM and uses the Chinese government regulated alternative, TCM. TCM technology is not compatible with TPM compatible applications such as Windows Vista® BitLocker and Wave Embassy Trusted Suite.
  • Hong Kong uses regular TPM.
  • There is no Russian equivalent to TCM. Encryption products (not just TPM) implementing encryption with a certain strength level or higher, are subject to review and approval by Russian authorities.

Reactivation of the TPM Security Feature Field

For users of the TPM security feature that have had a system board replacement, the TPM security feature field needs to be re-activated. For instruction on how to activate, refer to the Dell KB Article: "How do I re-activate my Trusted Platform Module (TPM) security feature" Article ID: 273378

Installation and activation of TPM causes Windows® XP System Restore to remove any existing System Restore Points. Create a restore point after the Personal Secure Drive is activated and functional.

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Article ID: SLN55441

Last Date Modified: 04/05/2016 03:24 PM

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