TPM Unknown Device: Troubleshoot ACPI MSFT0101 Error

What is ACPI MSFT0101 Error?

The ACPI MSFT0101 error indicates an issue with the Security Chip Trusted Platform Module (TPM) in Windows devices. It appears as an "Unknown device" in Device Manager with the hardware ID ACPI MSFT0101.

Causes of ACPI MSFT0101 Error

The error can occur due to several reasons:

• Outdated Windows updates
• Missing or corrupted TPM drivers
• TPM settings are disabled in BIOS
• 32-bit Windows version without 64-bit driver availability
• Windows version compatibility issues

How to Fix ACPI MSFT0101 Error

Method 1: Update Windows

Ensure your Windows system is up-to-date. Windows updates often include fixes for hardware compatibility issues.

Method 2: Update TPM Drivers

Download and install the latest TPM drivers from the device manufacturer's website. Alternatively, you can use Windows Update to automatically search for and install driver updates.

Method 3: Enable TPM in BIOS

Enter your device's BIOS settings and navigate to the "Security" or "Trusted Computing" section. Ensure that the TPM is enabled.

Method 4: Switch to 64-bit Windows

If you are using a 32-bit version of Windows, consider upgrading to the 64-bit version. Some devices may require a 64-bit operating system to install TPM drivers.

Method 5: Contact Device Manufacturer

If none of the above methods resolve the issue, contact the device manufacturer for support. They can provide specific instructions or troubleshooting steps for your device.