TPM — Trusted Platform Module

A hardware chip on modern motherboards that stores cryptographic keys in tamper-resistant memory. Used by BitLocker, Windows Hello, Credential Guard and Measured Boot. TPM 2.0 is a hard requirement for Windows 11.

Most enterprise hardware bought after 2018 has TPM 2.0; many laptops ship with it disabled by default — enable it in BIOS/UEFI.

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