How to Use BitLocker Without TPM

As we all know, BitLocker's full-disk encryption requires typically a computer with Trust Platform Module (TPM), so if you try to use BitLocker without TPM, you'll be told your administrator must set a system policy option.

However, BitLocker is only suitable for Professional, Education, and Enterprise editions of Windows, including Windows 7 Ultimate, but not for any Home edition of Windows. If you want to use BitLocker on Windows 10/11 Home, you can take 

Thus, there comes a problem with how to use BitLocker without TPM. Don't worry, you'll get the answer in this article.

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Why does BitLocker need TPM?

BitLocker provides maximum protection when used with a TPM version 1.2 or later versions. It works with BitLocker to help protect user data and to ensure that a computer hasn't been tampered with while the system is offline.

BitLocker can use TPM to verify the integrity of the early boot components and Boot Configuration Data. This helps ensure BitLocker makes the encrypted drive accessible only if those components have not been tampered with and the encrypted drive is located in the original computer.

How to use BitLocker without TPM?

BitLocker encrypts the data on your hard disk and then stores the encryption key on TPM. By reconfiguring the default BitLocker settings, you can also use BitLocker without TPM.

You can use BitLocker without TPM through a Group Policy change. But you can't change the Group Policy setting yourself if your computer is joined to a business or school domain.

Here's how to use BitLocker by changing Group Policy:

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FAQ about using BitLocker without TPM