A Trusted Platform Module (TPM) is a type of computer chip that stores information that is used to help make sure your computer is secure. It stores things like your passwords and encryption keys. The TPM chip works with software to help keep your computer safe. The software checks the TPM chip to make sure it is authentic and then checks the information stored in it to make sure it is correct. If everything matches up, your computer can trust the information and use it. If the TPM chip or the information stored in it doesn't match up, your computer won't trust it and won't let you use it.