Hi Houria,
My name is Cindy. I am sorry you are having this problem. I know it is really frustrating. I will do my best to help you with this problem.
Please note: This is a user-to-user community forum. We are users just like you who help others. We are not employees of Microsoft.
Thank you for writing. You will not be able to bypass the Bitlocker Key. This has been set in place to protect access to the data on the computer in case it has been taken by an unauthorized person.
The Bitlocker key can be found on your Microsoft account. I have enclosed the directions below.
I am sorry you are having this problem. I know it is really frustrating. My name is Cindy,
Have you compared the Bitlocker key to the key on your Microsoft.com account?
Please go to Microsoft.com and sign on to your account.
Then click on My Microsoft Account
Click on view details for the computer with the problem.
Then click on the Manager Recovery Keys.
You should see the key for your computer.
It is possible to copy and paste the code into the box on the page.
Please let me know if you have questions.
Cindy