[NAME] Zahid Hasan  Your PC is not on the list of Dell computers that can be updated to Windows 11.  Therefore updating TPM will be pointless.  Windows 11 requires an Intel 8th generation or newer CPU. 
Recent windows 11 upgrade required to have a TPM 2.0 but I have 1.2. Now I want to switch Windows 10 to Windows 11 but because of my TPM 1.2 I'm unable to switch to Windows 11. Now what can I do or how can I upgrade my TPM 1.2 to 2.0.
How can I upgrade my Dell OptiPlex 3046's Trusted Platform Module (TPM) Version 
1.2 to 2.0?