If your second hard disk is not detected after reboot or Windows Upgrade, check the SATA cable. These solutions will help you fix this issue.

By following these steps, you should be able to resolve the "TPM Device Not Detected" issue on your Windows system, ensuring your computer meets the necessary security requirements for Windows 11.

If your hard disk light keeps on blinking, but the drive is not detected on your Windows 11/10 PC, change the power management option first and see.