Acpi Msft0101 Driver Windows 7

Close the properties window, right-click the device again, and select . Confirm the action when prompted.

Specifically, this ID is used by the Windows ACPI driver parser to identify a TPM 2.0 device. On modern motherboards (manufactured roughly 2015 and later), the TPM chip is standard. However, Windows 7 was released long before TPM 2.0 became standard, and it natively supports TPM 1.2. Consequently, Windows 7 does not include the inbox drivers required to recognize or manage a TPM 2.0 chip.

Run the downloaded .msu file and follow the on-screen installation prompts. Restart your computer.

The ACPI\MSFT0101 ID refers to the , which is an implementation of TPM 2.0 (Trusted Platform Module) . Acpi Msft0101 Driver Windows 7

Mr. Henderson called. "Is it fixed? Just delete the yellow thing."

Microsoft released a specific hotfix package to backport native TPM 2.0 support to Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1. Installing this update allows Windows 7 to properly recognize the driver. Step 1: Verify Windows 7 Service Pack 1 The hotfix requires you to be running Service Pack 1. Press the , type winver , and press Enter .

Restart your computer to see if the device resolves itself or shifts names. Summary Checklist Expected Result Install Microsoft Hotfix KB2920188 Device is recognized as TPM 2.0 Remove Error Quickly Turn off Intel PTT / TPM in BIOS Device disappears from Device Manager Fix Infrastructure Update Intel Chipset INF Drivers System stability and correct ACPI mapping To help find the correct fix for your setup, let me know: Is your Windows 7 system 32-bit or 64-bit ? Close the properties window, right-click the device again,

No. Leaving the ACPI\MSFT0101 device with a yellow exclamation mark in Device Manager will not cause system instability, performance drops, or blue screens (BSODs). It simply means that high-level hardware encryption commands are unavailable to Windows 7. Standard computing tasks, gaming, and software operations will continue to run normally.

If updating the driver does not resolve the issue, try the following troubleshooting tips:

Upon restarting, Windows 7 will recognize the device, and it will shift from "Unknown Device" to under the "Security Devices" tree in Device Manager. Method 2: Configure the System BIOS / UEFI Run the downloaded

Note that while the hotfix allows the device to be recognized, Bitlocker support for TPM 2.0 on Windows 7 is generally limited to the Ultimate and Enterprise editions.

If you look inside your Windows 7 Device Manager and see a yellow exclamation mark next to an "Unknown device" with the hardware ID ACPI\MSFT0101 , you are not alone.

This article explains what this device is, why Windows 7 cannot automatically find a driver for it, and what — if anything — you can do about it.

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

If fixed via hotfix: The status bar will read