What is a trusted platform module

A Trusted Platform Module (TPM) is not recognized on some Windows 7 devices

  • 2 minutes to read

This article resolves the issue where a TPM is not recognized as a compatible device on some Windows devices.

Applies to: Windows 10 - all editions
Original KB number:   2895212

Problem Description

A TPM is not recognized as a compatible device on some Windows 7 devices. And it cannot be used for certain applications such as: B. BitLocker Drive Encryption and Virtual Smart Card. Also, if you check the status of the TPM using the Windows TPM Management Console, you will receive a message that says Compatible TPM "not found.

In addition, the same behavior can occur on some Windows-based devices when you perform an in-place upgrade from Windows XP or Windows Vista to Windows 7.

root cause

This problem occurs because the TPM uses the OEM driver and not the built-in Windows trusted platform module driver.

Note

When you open Device Manager on some devices, the TPM will be found under System devices and not under Security devices listed.

solution

To fix this problem, open Device Manager on the device that is having the problem, and then uninstall the Trusted Platform Module driver.

When you perform a hardware scan, the TPM is recognized as a security device and uses the Microsoft driver. In addition, the TPM is now under Security devices listed as trusted platform module 1.2.

additional Information

For more information, see: