There are two issues here. What is your processor model number? If it is an 8th gen (with a few 7th gen exceptions), you have PTT already and need not worry.
Now, if you do not have an 8th gen processor, you may have a TPM header on the motherboard which may accomodate a tpm 2.0 module. You will need to contact your motherboard manufacturer to determine that. So, who made your board and what model is it?
However, none of that may be necessary. Check this post:
https://community.intel.com/t5/Mobile-and-Desktop-Processors/Processors-TPM-and-Windows-11-24H2/m-p/1647361#M79106
Doc (not an Intel employee or contractor)
[AI is the same as snake-oil]
