Home > Questions

Is UEFI Required for BitLocker?

I have a Microsoft computer and I want to use BitLocker to encrypt my drive, so if BitLocker only supports UEFI firmware, it will be bad for me. Is UEFI required for BitLocker or is any other firmware required for BitLocker? Thanks all!!

Best Answered by

Eudora Liu

Answered on Wednesday, May 31, 2023

Actually, UEFI firmware is not the only one that is required for BitLocker. The system BIOS can also be used by BitLocker.

For BitLocker to use the system comprehensive check provided by TPM, the computer must have TPM 1.2 or later versions. And a computer with TPM must have a Trusted Computer Group (TCG) which is compliant with BIOS or UEFI.

The BIOS or UEFI establishes a chain of trust for the pre-operating system startup, and it must include support for TCG-specified Static Root of Trust Measurement.

But TPM 2.0 is not supported in the Legacy and Compatibility Support Module ( CSM) modes of the BIOS. So devices with TPM 2.0 should have their BIOS mode configured as UEFI only. And at the same time, disable the Legace and CSM.

So, provided it is TCG compliant, the BIOS is also supported. But not all TPM chips support the Legacy BIOS, and you will need the UFEI firmware to use BitLocker on a later version of Windows.

For more about BitLocker, you can also read:

How to Find BitLocker Recovery Key And Do BitLocker Recovery?

How to Unlock BitLocker Drive Without Password & Recovery Key?

People Also Ask

No way to access the BitLocker recovery key, what to do?

If you're asked to enter the BitLocker recovery key at login but can't find it anywhere, check this question for the solutions.

Jenny Zeng 31st May 2023

How Secure Is BitLocker? Is It Possible to Recover Data from Formatted BitLocker Drive?

This is the answer to the question that whether BitLocker is secure and whether it is possible to recover data from a BitLocker-encrypted drive after formatting it.

Amanda Wong 31st May 2023

How likely is it that turning on BitLocker will help me or screw me over later?

Will turning on BitLocker help protect your data or screw you over later? Check out this thread for the answer.

Jenny Zeng 31st May 2023

What does BitLocker protect against?

Read on to learn the purpose of BitLocker and what it can protect your computer or external drive from.

Jenny Zeng 31st May 2023

Without setting up any password for BitLocker, is it useless?

I haven't set up any password for my BitLocker encrypted or set it to unlock the drive from a USB, I want to know whether the BitLocker drive encryption without password is useful.

Amanda Wong 31st May 2023

What is the BitLocker recovery key? Is it important?

When I enable BitLocker on my computer's internal drive, there is a BitLocker recovery key generated and it asks me to back up it. I am wondering what the recovery key is and whether it is important.

Amanda Wong 31st May 2023

Read More Questions

Read More Advice From iBoysoft's Computer Experts

bitlocker automatic device encryption

BitLocker Automatic Device Encryption: It Explains Automatically Enabled BitLocker on Windows 10/11

This post elaborates on BitLocker automatic device encryption, including what it is, how it works, how to activate and disable it, etc. And explains why some users found it enabled without knowledge.

31st May 2023Wiki Tips

format bitlocker drive

Format BitLocker Drive with or Without Password/Recovery Key

Reading this post to know how to format BitLocker encrypted drive on Windows and macOS. You can format BitLocker drive with or without password and recovery key.

31st May 2023How to Tips

desactivar BitLocker

¿Cómo apagar o desactivar el cifrado BitLocker en Windows 10?

Este artículo te explicará cinco métodos para desactivar o apagar el cifrado BitLocker en Windows 10.

3rd June 2023

Useful Tips: Mac Data Recovery Tips; Windows Data Recovery Tips; NTFS for Mac Tips; Bitlocker Tips

Resources: How to Tutorials; Library; News

Policies: Refund Policy; Privacy policy; License Agreement; Uninstall