Are you a Windows user experiencing Bitlocker fatal error with code 0x00000120? This (Blue Screen of Death) BSoD error pops up resulting in automatic shut down and/or system restart.

  • Sometimes, when you open the computer, the system may attempt to boot from USB devices resulting in the Bitlocker fatal error display.

  • The problem can be solved using a dedicated tool for BSoD error, that cleans your registry and restores your PC performance.

  • Make sure to check the BIOS settings whenever you’re confronted with this situation.

  • Several users confirm that disabling the Bitlocker solves this error in Windows 10 most of the time.

  • Download Restoro PC Repair Tool that comes with Patented Technologies (patent available here).

  • Click Start Scan to find Windows issues that could be causing PC problems.

  • Click Repair All to fix issues affecting your computer’s security and performance

  • Restoro has been downloaded by 0 readers this month.

BitLocker is a full-disk encryption feature that protects data by providing encryption; hence, it is a Windows security feature.

It uses the AES encryption algorithm in cipher block chaining (CBC) or XTS mode with a 128-bit or 256-bit key.

Meanwhile, BitLocker is not available on Windows XP, Windows 2000, or Windows 2003 OS but in subsequent OS versions.

However, the Bitlocker fatal error BSoD appears during the boot process in Windows OS, and today, we will show you how to solve this error problem.

The reasons for this error include corrupted system files, corrupted Bitlocker program files, incomplete Windows installation and/or upgrade or corruption in the Bitlocker drive encryption.

Other reasons may imply the addition/removal of drives, missing Dynamic Link Libraries(DLL) or even changes in the BIOS boot order.

Meanwhile, Windows Report Team has provided solutions that are applicable in fixing the Bitlocker fatal error with stop code 0x00000120.

How can I fix the Bitlocker fatal error on Windows PC?

1. Use a dedicated tool for BSoD

BSoD errors are hard to troubleshoot and diagnose. There are plenty of reasons for them, from hardware to software issues. Fortunately, there are tools to help you out.

2. Disconnect your USB devices

According to some Windows users, USB devices such as Wi-Fi adapters, keyboards, mice, and Bluetooth or can cause this problem to occur.

Restoro is powered by an online database that features the latest functional system files for Windows 10 PCs, allowing you to easily replace any elements that can cause a BSoD error.

This software can also help you by creating a restore point before starting the repairs, enabling you to easily restore the previous version of your system if something goes wrong.

This is how you can fix registry errors using Restoro:

  • Download and install Restoro.
  • Launch the application.
  • Wait for the software to identify stability issues and possible corrupted files.
  • Press Start Repair.
  • Restart your PC for all the changes to take effect.

As soon as the fixing process is completed, your PC should work without problems, and you will not have to worry about BSoD errors or slow response times ever again.

⇒ Get Restoro

Disclaimer: This program needs to be upgraded from the free version in order to perform some specific actions.

During boot, the system may attempt to boot from any of these devices resulting in the Bitlocker fatal error display.

However, you can fix this issue, by disconnecting all attached USB devices and booting your system afterward.

In addition, check your PC if there is any CD, DVD, or any other secondary storage devices and eject them before you boot up your PC. If this method does not work, you can proceed to the next method.

3. Use the Disk Cleanup tool

  • Go to Start and type Disk Cleanup then hit Enter.
  • Select the first two options then click on the Clean up system files button.
  • Wait for Disk Cleanup to scan your drive(s).
  • After the scanning, check the file boxes, and then click on OK to delete.
  • Select Delete files to proceed.

You can also fix the error problem by running disk cleanup on your Windows PC. Disk Cleanup is a Windows utility program that reduces the number of unnecessary files on your hard disk to free up disk space.

Some PC issues are hard to tackle, especially when it comes to corrupted repositories or missing Windows files. If you are having troubles fixing an error, your system may be partially broken. We recommend installing Restoro, a tool that will scan your machine and identify what the fault is.Click here to download and start repairing.

Expert tip:

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4. Repair the computer registry

  • Open the Windows search bar and type cmd and open Command Prompt as administrator.
  • Now, type sfc /scannow and hit the Enter key.
  • Finally, restart your Windows PC and try launching the application again

Another way by which you can fix Bitlocker’s fatal error problem is to use System File Checker. SFC can be used to scan, check for system file integrity, and fix corrupt system files.

If you encounter errors while running SFC, it stops or does not work at all on Windows 10, take a look at our dedicated guide in order to fix the issue.

5. Use the dedicated PC cleaner tool

You can use a third-party tool to clean your computer like a professional. If your PC doesn’t work great anymore, this software will free up hard drive space and optimize your PC’s performance.

We recommend you use this Windows utility program that can fix corrupt system files, remove obsolete system files and repair your PC registry.

You can also use it to delete the browsing history and trackers to keep browsing private, update software to close security holes, and monitor your system info.

⇒ Get CCleaner

6. Reset BIOS settings

  • Restart your computer.
  • Hit the F2 key repeatedly until a System Setup screen window appears. (The BIOS function key varies; you may have to check during boot which Function key to use so as to access the BIOS settings).
  • Now, Hit on the Right Arrow on your keyboard and wait until Exit menu is highlighted.
  • Next, hit on the Down Arrow on your keyboard and select Load Optimized Defaults option.
  • Finally, hit the Enter button.

BIOS consists of system settings that determine the order and how your PC boots up. However, resetting BIOS settings to the default state can fix the Bitlocker fatal error problem.

Before you proceed with these steps, ensure you disconnect connected external drives (as indicated in Method 1). 

8. Update your Windows OS

  • Go to Start and selected Settings from the left pane.
  • Go to Update & Security.
  • In the Windows Update window, check for updates and install the available updates.
  • After the update is complete, restart your Windows PC.

Microsoft constantly releases Windows updates to improve system stability, PC performance, and fix various issues and errors such as the Bitlocker fatal error.

9. Disable the Bitlocker

However, if you are unable to fix the BitLocker fatal error using the methods listed above, then you may have to disable the Bitlocker from your computer. 

After you disable Bitlocker, we do recommend that you use any of the best 256-bit encryption software to protect your files. In addition, you may also consider file and folder locker tools and software for Windows PC.

If you don’t know how to disable the Bitlocker on your computer, we recommend you use our dedicated guide on how to perform this action.

If you have wondered how to fix this Bitlocker problem, you can try out any of the methods we discussed in any order. If you have any suggestions, feel free to let us know in the comment section below.

If the advices above haven’t solved your issue, your PC may experience deeper Windows problems. We recommend downloading this PC Repair tool (rated Great on TrustPilot.com) to easily address them. After installation, simply click the Start Scan button and then press on Repair All.

Still having issues? Fix them with this tool:

  • BitlockerBSoD error codes

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