While earlier versions of this driver were integrated into the or Intel Trusted Execution Engine (TXE) , specific updates released in late 2021 (such as the Lenovo ACPI Driver released in November 2021) were designed to improve compatibility with Windows 11 . How to Install the ACPI MSFT0101 Driver

If the device cannot be found or won't start, ensure that TPM 2.0 or Intel PTT is enabled in your BIOS security settings.

Securing your data by encrypting the entire drive. Windows Hello: Enabling secure biometric login.

If you see this device with a yellow exclamation mark in your Device Manager, follow these steps to resolve it:

For older systems, you may need a specific hotfix, such as KB2920188 , to add TPM 2.0 support to the operating system. Troubleshooting Common Errors

Ensuring only trusted software runs during the startup process. Device Guard: Protecting the system against malicious code. The Importance of the 2021 Driver Update