Major hardware manufacturers often provide their own installers for ACPI components:
There is no need to pay for dubious "driver fixer" tools. The ACPI MSFT0101 driver can be obtained for free from legitimate sources. Acpi Msft0101 Driver Windows 7 Free
from Lenovo’s official support site:
The code is a hardware identifier. In the context of modern laptops and desktop motherboards, this specific ID almost always refers to the Trusted Platform Module (TPM) . In the context of modern laptops and desktop
For Windows 7 Home or Professional users, TPM 2.0 has almost no functional value, as BitLocker is only available on Ultimate and Enterprise editions. You can safely right-click the device in Device Manager and select Disable . To resolve this "Unknown Device" error and enable TPM 2
To resolve this "Unknown Device" error and enable TPM 2.0 support, you generally need a specific Microsoft Hotfix or a manual driver installation: Microsoft Hotfix (KB2920188)
This hotfix is essential if you plan to use BitLocker or other TPM-dependent security tools. 2. Manufacturer-Specific Drivers