>Most people don’t realize they have a TPM installed in their machine.
Serously?
Which machines are those?
If you’re using Windows, go to Start > Run > type ‘mmc’
In the management console hit Ctrl+M or go to File > Add/Remove snap-in.
On the left-hand side of the list, scroll to the bottom and find TPM Management. If it’s in the list, you have a TPM.
Every motherboard from every manufacturer distributed since 2008 has one installed. They used to be optional add-on chips, now they’re soldered to the boards.
“Which machines are those (with TPM installed)?”
Pretty much every 64-bit laptop in the USA.