TPM Error in Device Manager After Windows Update

Fix for Windows 7 64-bit

If you have upgraded to Windows 7 64-bit and are experiencing problems with the TPM (Trusted Platform Module), you can install a hotfix from Microsoft to resolve the issue.

Steps to install the hotfix:

1. Download the hotfix from Lenovo's website.
2. Unzip the downloaded file.
3. Run the hotfix file.
4. Restart your computer.

Details of the device

The affected device is called "ACPIMSFT0101" and appears in the Device Manager under "Security devices". It corresponds to the TPM module, which is used for security purposes.

Conclusion

If you are experiencing problems with the TPM module after installing a Windows update, try installing the hotfix described above. This should resolve the issue and restore the TPM module to normal operation.