When this driver fails to load properly, it is usually caused by one of four underlying issues:
The device ID refers specifically to the Trusted Platform Module (TPM) 2.0 . In many modern systems, particularly those using Intel Skylake or newer processors, this is integrated as part of the Intel Platform Trust Technology (PTT) . Understanding the Driver
Automatically supported and typically installed through Windows Update or as part of the motherboard's UEFI firmware support. Windows 7 (64-bit):
under "Other Devices" or with an error under "Security Devices". Recommended Resolution: Automatic Updates: -NEW- Acpi Msft0101 Driver 77 2021
The "-NEW- Acpi Msft0101 Driver 77 2021" suggests that there is a new version of the driver available, specifically version 77, released in 2021. This new driver is likely to bring several improvements and fixes over its predecessors, including:
TPM handles encryption keys, Windows Hello, BitLocker, and — critically — Windows 11 compatibility checks .
Look for , Intel Platform Trust Technology (PTT) , or Security Device Support . Set it to Enabled . Save changes and exit (usually F10 ). Method 2: Use Windows Update (Optional Updates) When this driver fails to load properly, it
: If the driver fails to install or "Device cannot start (Code 10)" appears, ensure that TPM 2.0 or PTT (Intel) / fTPM (AMD) is enabled in your system's BIOS settings.
Change the setting from Disabled to or Firmware TPM . Save changes and exit (usually F10 ). 2. Update the Chipset and Intel ME / AMD PSP Drivers
Below is a comprehensive guide to understanding, diagnosing, and resolving the "-NEW- Acpi Msft0101 Driver 77 2021" error on modern Windows environments. What is the ACPI\MSFT0101 Device? Windows 7 (64-bit): under "Other Devices" or with
Before modifying any software drivers, ensure the physical security device is active at the hardware level.
: Enables Secure Boot and provides services for Intel Platform Trust Technology (PTT) .
For laptops, visit the official support pages for brands like to download the specific Intel Trusted Execution Engine driver for your model. BIOS Settings: