Acpi Msft0101

**Windows Update Issue Reveals TPM Device Error** A recent Windows update in October 2017 has caused issues with the Trusted Platform Module (TPM) on some PCs. In Device Manager, under "Security devices," an unknown device hardware ID of "ACPI MSFT0101" is displayed, indicating a problem with the security chip TPM setting. This issue primarily affects Windows 7 64-bit systems. To resolve it, users should apply a specific hotfix only applicable to Windows 7 64-bit. To access the details of the device, follow these steps: 1. Go to Start 2. Select Settings 3. Click on Update & Security 4. Under Windows Security, choose Device security 5. In the "Security processor" section, click on "Security processor details" If the hardware ID is "ACPI MSFT0101," it indicates the presence of the TPM issue. Users are advised to apply the hotfix and restart their PCs to resolve the problem. This issue is a result of a pending or completed update related to the TPM, which is a hardware component responsible for securing encryption keys and other sensitive information. The hotfix addresses the issue by updating the TPM driver and resolving the hardware ID conflict. If you are experiencing the TPM device error after the October 2017 Windows update, it is recommended to apply the hotfix as soon as possible to restore the proper functioning of the TPM chip.