Msft0101 Driver Windows 7 64 Bit

How to Fix Unknown ACPIMSFT0101 Device Errors

What is the ACPIMSFT0101 Device?

The ACPIMSFT0101 device is a Trusted Platform Module (TPM) device used for hardware-based security features. It is found on many computers and laptops, and is used for features such as BitLocker encryption and Windows Hello.

How to Fix Unknown ACPIMSFT0101 Device Errors

If you are seeing an Unknown ACPIMSFT0101 device error, it means that Windows does not have the correct driver for the device. To fix this error, you need to install the correct driver.

For Windows 7 x64 or Windows Server 2008 R2

A hotfix is available to add support for TPM 2.0 devices. You can download the hotfix from the following link:

Update to add support for TPM 2.0 devices in Windows 7 and Windows Server 2008 R2

For Windows 10

Windows 10 already includes support for TPM 2.0 devices. If you are seeing an Unknown ACPIMSFT0101 device error on Windows 10, it is likely that the driver is not installed correctly.

To install the correct driver, follow these steps:

1. Open the Device Manager. 2. Expand the "Security devices" category. 3. Right-click on the "Unknown ACPIMSFT0101 device" and select "Update driver". 4. Select the "Browse my computer for driver software" option. 5. Navigate to the folder where you downloaded the driver. 6. Select the driver file and click "Open". 7. Click "OK" to install the driver.

Once the driver is installed, you should no longer see the Unknown ACPIMSFT0101 device error.