This method is less reliable but can work if the hotfix isn't available.

Power on the system and repeatedly press the setup key (typically , F10 , F12 , or Del ) to enter the BIOS/UEFI menu. Switch to Advanced Mode or the Security tab.

To fix the driver issue, you must first understand what the device represents.

Even if you find a working driver today, future BIOS updates or TPM firmware updates may break it again. For enterprise environments, NIST and Microsoft recommend moving to Windows 10 or 11 precisely because of TPM 2.0 integration for security (e.g., Secure Boot, Credential Guard).

. In Windows 7, this often appears as an "Unknown Device" in Device Manager because the operating system does not natively support TPM 2.0 without specific updates. Key Features and Role