that matches your system (x86 for 32-bit or x64 for 64-bit).
. Often appearing in the Device Manager as an "Unknown Device" with a yellow warning triangle, this identifier represents a critical bridge between hardware security and the operating system: the Intel Platform Trust Technology (PTT) Trusted Platform Module (TPM) 2.0 Understanding the Identifier Acpi Msft0101 Driver Windows 7
: If you use BitLocker or third-party encryption, disable BitLocker before disabling TPM. that matches your system (x86 for 32-bit or x64 for 64-bit)
The ACPI\MSFT0101 ID refers to the , which is an implementation of TPM 2.0 (Trusted Platform Module) . The ACPI\MSFT0101 ID refers to the , which
Thus, you are not missing a driver due to a mistake. You are missing it because your hardware is technically too new for the OS.
If you absolutely need TPM functionality, your only reliable path is upgrading to Windows 10 or Windows 11, where TPM 2.0 drivers are built into the operating system and work seamlessly.