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10 July 2024  Amanda J. Brook  Senior Product Manager
 

Summary
A Trusted Platform Module (TPM) is essential for enhancing PC security by securely creating and storing cryptographic keys and ensuring the authenticity of the operating system and firmware. It is used by services like BitLocker and Windows Hello. While traditionally a separate chip on the motherboard, TPM 2.0 allows integration into chipsets by manufacturers like Intel and AMD. TPM technology has been in use for over 20 years.



Table of contents

table iconWhat is a Cryptographic Key?
table iconDoes My PC Already Have TPM?
table iconSummary
A Trusted Platform Module (TPM) is a critical component used to enhance the security of your PC. It is utilized by services such as BitLocker drive encryption, Windows Hello, and others to securely create and store cryptographic keys. Additionally, TPM ensures that the operating system and firmware on your device are authentic and have not been tampered with. Typically, TPM is a separate chip on the motherboard. However, the TPM 2.0 standard allows manufacturers like Intel and AMD to integrate TPM capabilities into their chipsets, eliminating the need for a separate chip.
An illustration of a computer chip 
TPM technology has been around for over 20 years and has been included in PCs since around 2005. In 2016, TPM version 2.0, which is the current version as of this writing, became the standard in new PCs.

What is a Cryptographic Key?

When you encrypt data to protect it from unauthorized access, the encryption software combines the data with a long, random string of characters, creating a new, encrypted piece of data. This long, random string of characters used by the encryption software is known as the cryptographic key. Note: The unencrypted data is referred to as the “plaintext,” while the encrypted version of that data is called the “ciphertext.” Once data is encrypted, only someone with the correct cryptographic key can decrypt it and access the original information.

Does My PC Already Have TPM?

Chances are, your PC already has TPM, especially if it is less than 5 years old, in which case you should have TPM 2.0. To find out if your Windows 10 PC already has TPM, follow these steps:
1. Go to Start > Settings > Update and Security > Windows Security > Device Security.
2. If TPM is present, you will see a Security processor section on the screen.
Security processor details link 
For more information about moving Windows 11 system, please read How to Clone Windows 11 to Another Drive: A Step-by-Step Guide!

Summary

In summary, TPM is a vital component that enhances the security of your PC by securely creating and storing cryptographic keys and ensuring the integrity of your operating system and firmware. With TPM 2.0 being standard in PCs manufactured in the last few years, it is likely that your PC already includes this technology. Understanding and utilizing TPM can significantly improve your device’s security posture.
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