Windows 10: How to decrypt BitLocker encrypted disk without any password

Hi I have a Dell latitude 5490 laptop with Windows 10 but I installed Ubuntu 25.04 on a thumb drive and booted but after that my main disk is encrypted by BitLocker, BitLocker automatically enabled after I turned on TPM 2.0 in the BIOS I don't got any key or password for unlocking and I have there some important files, is there any way to decrypt it?

:)

 

Bitlocker Stuck Decrypting

@rinconmike For future reference, instead of using the TASK MANAGER to restart, you can simply hold CTRL + SHIFT and right click on blank space on the Task bar, to bring up 'Exit Explorer'. Another option is to use software.

From m3datarecovery Download Instructions

From m3datarecovery - *Smile

 

Cannot decrypt the disk encrypted by BitLocker

While I was decrypting my disk that I had encrypted using BitLocker, the laptop suddenly shutdown and then I lost access to the disk. The system isn’t accepting my correct password and code. Windows 10 requires for credentials, thinks
for a while and then closes without giving the access to my disk.

I use Windows 10 pro. Help me please. I need to regain access to my disk as soon as possible because I have lots of important information there

 

Cannot decrypt the disk encrypted by BitLocker

Hi Tom,

Please follow this guideline:

Method 1: Plug in the drive to your laptop and check if you can decrypt it. This shutdown might have been caused by the battery.

Method 2: Following the steps to decrypt the drive:

1. Login, then connect the disk to the computer.

2. Right-click cmd.exe, then select "run as administrator" to launch the command.

3. Type in the following command and press Enter:

manage-bde -off d: (Note you should substitute ‘d’ for the correct drive letter.

You can also get in touch with Microsoft support here: ‘Microsoft Commercial Support’

https://support.microsoft.com/en-us/gp/commerci...

If the methods don’t help, post your query in the TechNet Forum to get further assistance

https://social.technet.microsoft.com/Forums/win...

You might also refer to the following articles:

‘BitLocker’
https://docs.microsoft.com/en-us/windows/securi...

‘Overview of BitLocker Device Encryption in Windows 10’
https://docs.microsoft.com/en-us/windows/securi...

Write me back if it works or not.

Thanks,

Andrew N.