The year 2021 was a turning point for PC hardware requirements. Microsoft officially announced Windows 11, making a physical TPM 2.0 chip a mandatory requirement for operating system installation. Key Improvements in Driver 77 (2021)
To understand the ACPI MSFT0101 driver, we need to break down what each part of its name signifies.
If the driver itself is corrupted, forcing Windows to rebuild its configuration block will often clear the yellow exclamation triangle.
Advanced Configuration and Power Interface (ACPI) tables map out how your operating system interacts with your motherboard's hardware. The specific identifier MSFT0101 points to Microsoft's standard implementation specification for TPM 2.0 devices.
Right-click (or the unknown ACPI\MSFT0101 entry). Click Uninstall device . -NEW- Acpi Msft0101 Driver 77 2021
If you are running a modern version of Windows 10 or Windows 11 on a UEFI-based system with a compatible BIOS, the ACPI MSFT0101 driver is handled seamlessly.
There’s for MSFT0101. Likely meanings:
: Enables Secure Boot and provides services for Intel Platform Trust Technology (PTT) .
This driver enables the Trusted Platform Module (TPM) 2.0 , which provides hardware-based security for features like BitLocker drive encryption, Windows Hello biometric login, and Windows 11 system requirements . The year 2021 was a turning point for
This article explains what the is, why your computer needs it, and how to safely install or update it. What is the ACPI\MSFT0101 Device?
Apply the chipset update first, then flash your BIOS following the manufacturer’s exact guidelines. Verification of Success
Most modern versions of Windows 10 and 11 will automatically fetch this driver. Check Settings > Update & Security > Windows Update and look under "Optional updates."
Once you have completed the steps above, you can easily verify whether the ACPI MSFT0101 subsystem is running perfectly. Press to open the Run dialog box. Type tpm.msc and hit Enter . If the driver itself is corrupted, forcing Windows
Before we talk about the fix, let’s talk about the problem. ACPI (Advanced Configuration and Power Interface) MSFT0101 is Microsoft’s hardware ID for the TPM 2.0 chip interface. In plain English: It’s the bridge between your motherboard’s security chip (or firmware-based fTPM) and Windows’ security systems like BitLocker, Windows Hello, and—crucially—Windows 11’s system requirements.
The device ID typically refers to the Intel Platform Trust Technology (PTT) or a Trusted Platform Module (TPM) 2.0 chipset component. For many users, this device appears as an "Unknown Device" in the Windows Device Manager after a fresh installation or major update. What is the ACPI MSFT0101 Device?
Depending on your setup, use one of these methods to get the driver: Windows Update
