this post was submitted on 11 Jul 2026
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Motherboard TPM sends a cryptographically verifiable serial number ID to Microsoft -> Microsoft generates a Device PUID (this ensures all DPUIDs are in the same format) -> Microsoft send generated DPUID back to the device which is stored within the TPM and is cryptographically verifiable to applications which wish to access and know it, and ensure it is genuine and authentic.
TPMs all have a unique identifier burned into them.