Bitlocker key issue

Question

I have entered the key but not login i have attached the display for you reference

Answer 1

Please provide some more detail on this problem you are experiencing.

1

If you are asked for a Bitlocker Recovery Key on a blue screen when you start your device, is the Bitlocker key you found on your Microsoft account online accepted, and if so, then what problem or error is indicated if you are unable to log into Windows.

2

What happened on your PC before this problem started to happen.

Answer 2

BitLocker unlock and Windows sign-in are two separate steps. Entering the BitLocker recovery key only decrypts the drive so Windows can start; it does not log in to the user account.

If the BitLocker key is accepted but Windows still does not log in or start normally, use these steps:

1. Confirm the BitLocker key is correct
   • On the blue BitLocker recovery screen, carefully enter the full 48‑digit recovery key (hyphens are optional).
   • If the key is correct, the device should proceed past the BitLocker screen and attempt to boot Windows.
2. If the device keeps asking for the BitLocker key
   • This can happen after firmware/TPM/UEFI changes or certain failures. Each time, enter the same valid recovery key to unlock the drive.
   • After Windows starts, back up data immediately.
3. If Windows does not start or cannot be used after BitLocker unlock
   • If there is no way to reach the desktop or sign‑in screen even after the key is accepted, use Windows recovery options to repair or reset the device. Be aware that a full reset will remove all files.
   • If the device is a Surface and the issue started after firmware/TPM changes, follow the Surface recovery approach: boot from a Surface recovery USB, unlock the drive with manage-bde and, if needed, reset the device.
4. If the BitLocker key is not accepted or is unknown
   • Use the guidance in “Find your BitLocker recovery key” to look for the key in:
     • Microsoft account or work/school account
     • Printout
     • USB flash drive
   • If the key cannot be found in any of the documented locations, the encrypted data cannot be recovered and the only option is to reset/reimage the device, which will erase all data on the encrypted drive.
5. If the device is managed by an organization
   • Contact the organization’s IT/helpdesk. Recovery keys may be stored in Microsoft Entra ID, AD DS, MBAM, Intune, or other management tools, and only the administrator can provide them.

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References:

• Find your BitLocker recovery key
• Windows devices for home users, businesses, and schools with Microsoft-managed updates
• BitLocker recovery process
• BitLocker recovery: known issues
• Unable to recover Bitlocker key and unable to reload Windows 11 - Microsoft Q&A
• Request for Assistance with BitLocker Recovery – Surface Pro 2 - Microsoft Q&A
• Surface Pro 3 blocked - Microsoft Q&A