What is a TPM and what does it do?
TPM stands for Trusted Platform Module and it is a microchip which is built into your computers motherboard. The TPM device works with your operating system to provide advanced security features, for example it’s used to safely store the BitLocker encryption key.
The TPM chip allows for hardware level encryption. Each has a unique and secret RSA key burned in as it is produced, providing a high level of security.
For most users a TPM device allows you to enable bit locker to encrypt your hard drives data.