Acpi Msft0101 Driver Windows 7 |link| Jun 2026

Right-click the "Unknown Device" in and select Update Driver Software .

Method 1: Install the Official Microsoft KB2920188 Hotfix (Recommended)

To resolve issues with the Acpi Msft0101 driver, updating the driver to the latest version is often the best solution. Here are the steps to update the driver: Acpi Msft0101 Driver Windows 7

Upon reboot, Windows 7 will recognize the ACPI\MSFT0101 device, and it will appear under the "Security Devices" section in Device Manager. Method 2: Change TPM Settings in BIOS/UEFI

, providing a more secure way to protect data on the hard drive. HP Support Community System Integrity Right-click the "Unknown Device" in and select Update

The Acpi Msft0101 driver is a software component designed to facilitate communication between the operating system and the Advanced Configuration and Power Interface (ACPI) on your computer. ACPI is a standard for managing power consumption and device configuration on modern computers.

The ACPI\MSFT0101 device requires the system BIOS to be running in . It is not supported under legacy BIOS. Install Microsoft Hotfix (KB2920188) Method 2: Change TPM Settings in BIOS/UEFI ,

Based on extensive user feedback and my research, here are additional tips for dealing with the ACPI\MSFT0101 issue:

If you cannot install the driver, the main consequences are:

The Acpi Msft0101 driver is a critical component of the Windows 7 operating system, responsible for managing power and configuration of ACPI devices. While issues with the driver can cause problems, updating, installing, or troubleshooting the driver can resolve many of these issues. By following the steps outlined in this article, you should be able to resolve any issues related to the Acpi Msft0101 driver on your Windows 7 system.

Windows 7 was designed before the TPM 2.0 standard was finalized. Consequently, the operating system does not include native support for this hardware out of the box. This article provides a comprehensive guide to understanding this issue and resolving it effectively. Why the ACPI\MSFT0101 Error Occurs