Bitlocker is needing code

If your drive is encrypted with Bitlocker, the only place the Bitlocker Recovery key is automatically stored is on the associated Microsoft account on the link below, be sure to check any Microsoft account that may have been used on the PC and also any work or school account that may be linked to the PC.

https://account.microsoft.com/devices/recoverykey

Are you able to find the Bitlocker Recovery Key on any account that may have been used or linked to the laptop?

If not, do you have a safe backup of your files, or use a cloud service like OneDrive to sync your files online.

If you are unable to find the Bitlocker Recovery Key on any account that may have been used on that device, then I am sorry for the bad news, a Windows reset will not work on an encrypted drive, the only way to access that device is to create a bootable Windows 11 USB on another working PC and use that to clean install Windows and at the start of the installation, delete all partitions on the drive to remove the encryption, which will sadly result in loss of all data on the drive.

BitLocker is a built-in Windows encryption feature that protects data by encrypting the entire drive. The computer is asking for a BitLocker recovery key because it detected something that looks like an unauthorized attempt to access the data.

This can happen, for example, if:

• Hardware was changed (like the motherboard, disk, or certain BIOS/UEFI settings)
• Firmware (BIOS/UEFI) was updated
• Certain system or boot files were modified

When this happens, BitLocker cannot tell if it is an attack or a legitimate change, so it locks the drive and requires the 48‑digit BitLocker recovery key to unlock it.

How BitLocker protects the data:

• If someone removes the hard drive and connects it to another device, the data is unreadable without the decryption key.
• Without the correct recovery key, the encrypted data appears as gibberish and cannot be accessed.

To get back in, the BitLocker recovery key is needed. Depending on how BitLocker was turned on, the key may be:

• Saved automatically to a Microsoft account or work/school account if Device Encryption was auto-enabled
• Saved by the person who manually turned on BitLocker Drive Encryption (for example, to a file, printout, or account)
• Held by an organization if the device is managed by a company or school

If the key cannot be found in any of those places, it cannot be retrieved or bypassed by anyone, including Microsoft support.

For detailed steps on where to look for the recovery key, see the guidance in Find your BitLocker recovery key.

References:

• BitLocker overview
• I can't sign in to my Microsoft account
• Request for Assistance with BitLocker Recovery – Surface Pro 2 - Microsoft Q&A
• Surface Pro 3 blocked - Microsoft Q&A
• Use the Self-Service Portal to regain access to a computer
• Bitlocker recovery key not working - Microsoft Q&A