Restart your computer after installation. This update allows Windows 7 to recognize the ACPI\MSFT0101 hardware ID as a security device. 3. Refresh Drivers in Windows 10/11
Download the from an official archive or the Microsoft Update Catalog .
: If you are using Windows 7 and do not need BitLocker, you can simply Disable this in the BIOS to remove the "Unknown Device" warning from Device Manager. 2. Install the Windows 7 Hotfix (KB2920188) acpi ven-msft amp-dev-0101
The hardware ID (often simplified as ACPI\MSFT0101 ) typically refers to the Trusted Platform Module (TPM) 2.0 or Intel Platform Trust Technology (PTT) . This device is a critical security component that manages encryption keys for features like Windows BitLocker and helps verify the integrity of your system during startup.
Restart your PC. Windows should automatically detect and reinstall the correct Intel(R) Trusted Platform Module driver upon reboot. Trusted Platform Module 2.0 Driver for BIOSTAR Restart your computer after installation
Restart your computer and enter the (usually by pressing F2, F10, or Del during boot).
: This older OS does not natively support TPM 2.0. Users often see this entry after installing Windows 7 on newer hardware (like Intel Skylake or later). Without a specific Microsoft hotfix, Windows 7 cannot identify the device. How to Fix the ACPI\MSFT0101 Driver Issue 1. Enable TPM/PTT in the BIOS Refresh Drivers in Windows 10/11 Download the from
If you are on Windows 7 64-bit, you must install a specific update to enable TPM 2.0 support.