Acpi Msft0101 Driver Windows 7

Microsoft began requiring TPM 2.0 for Windows 11, but TPM 2.0 hardware was already appearing on PCs during the Windows 7 and Windows 8.1 era.

There's a critical distinction: . If you're running 32-bit Windows 7, your only option to eliminate the unknown device error is Option 2 (Disable TPM in BIOS) . There is no driver update that will work for this system. Many users who have tried installing the 64-bit hotfix on 32-bit systems report it simply doesn't work and sometimes causes system instability.

Search for using your web browser. Download the architecture version that matches your system: x86 for 32-bit systems. x64 for 64-bit systems. Acpi Msft0101 Driver Windows 7

: If you are not using BitLocker or specialized security software that requires a hardware TPM, you can safely ignore the "Unknown Device" or disable it in the Device Manager . How to Install the Driver

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Microsoft began requiring TPM 2

June 2025 Applies to: Windows 7 SP1 (64-bit & 32-bit), all editions

Right-click the device and select . Confirm it says ACPI\MSFT0101 under the Details tab (Hardware IDs drop-down). There is no driver update that will work for this system

The device is relocated to the "Security Devices" section in Device Manager.

Windows 7 does natively support TPM 2.0; it originally only supported TPM 1.2. OS Limitations