The identifier ACPI\MSFT0101 refers to the Trusted Platform Module (TPM) 2.0.

“This device cannot start. (Code 77)”

This device is a core security component found on Intel Skylake and newer motherboards. It provides TPM 2.0 functionality, which is essential for hardware-based security features like:

1. Download the Driver: Visit the official Microsoft website or a trusted driver repository to download the -NEW- Acpi Msft0101 Driver 77 2021.
2. Run the Installer: Execute the downloaded file and follow the on-screen instructions to begin the installation process.
3. Restart Your System: Once the installation is complete, restart your computer to apply the changes.

under "Other Devices" or with an error under "Security Devices". Recommended Resolution: Automatic Updates:

Introduction

Step 2: Update the Driver Manually

Automatically supported and typically installed through Windows Update or as part of the motherboard's UEFI firmware support. Windows 7 (64-bit):

When to seek help

• Persistent error codes after trying the above
• Virtual machines fail to start or exhibit instability
• You’re unsure which vendor driver is appropriate for your hardware