Windows 11 upgrade failed as it says "The PC must support TPM 2.0"

If you encounter the error message "This PC must support TPM 2.0," it means your system is required to have TPM 2.0 enabled or supported to proceed, often during a Windows upgrade or installation. Here's what you can do:

1. Check if Your PC Has TPM 2.0:
Press Windows + R, type tpm.msc, and press Enter.
In the TPM Management window, see if TPM is present and its version.
If it shows TPM 2.0, but you still get the error, proceed to enable it in BIOS.

2. Enable TPM 2.0 in BIOS/UEFI Settings:
Restart your PC and enter the BIOS/UEFI setup (usually by pressing Del, F2, F10, or Esc during startup).
Locate the TPM or Security section.
Enable TPM, TPM 2.0, or PTT (Platform Trust Technology) / fTPM (firmware-based TPM), depending on your motherboard.
Save changes and exit.

3. Update BIOS/UEFI Firmware:
Check your motherboard or system manufacturer’s website for BIOS updates.
Updating BIOS can improve TPM support and compatibility.

4. Verify Hardware Compatibility:
If your PC doesn’t have a TPM module, and your motherboard doesn’t support firmware TPM, you may need to add a compatible TPM module (if your system supports it).

5. Consider System Compatibility:
You got the error "This PC must support TPM 2.0" indicates that your hardware doesn’t support TPM 2.0, you might not be able to upgrade to certain Windows versions (like Windows 11). In such cases, you may need to continue using your current OS version or upgrade hardware.