◆Error Codes Wiki

BitLocker Recovery Key Errors — Drive Locked and Recovery Key Not Found

Criticalsecurity

Overview

Fix BitLocker recovery key errors when Windows prompts for a recovery key at boot, the key is not found in your Microsoft account, or BitLocker locks the drive unexpectedly.

Key Details

  • BitLocker encrypts the entire drive — without the recovery key, data is permanently inaccessible
  • Windows may prompt for the recovery key after hardware changes, BIOS updates, or TPM issues
  • The 48-digit recovery key can be stored in Microsoft account, USB drive, printed copy, or Active Directory
  • Secure Boot changes, firmware updates, and TPM clearing all trigger recovery key prompts
  • BitLocker recovery mode means the TPM could not validate the boot integrity measurements

Common Causes

  • BIOS/UEFI firmware update changing boot measurements
  • Hardware change (new motherboard, TPM replacement, or docking station change)
  • Secure Boot configuration change or TPM cleared in BIOS
  • Boot order change or new boot device added
  • Windows update modifying boot components

Steps

  1. 1Find your recovery key at https://account.microsoft.com/devices/recoverykey (sign in with Microsoft account)
  2. 2Check if your IT department has the key stored in Active Directory (corporate environments)
  3. 3Look for a printed copy or USB drive where you saved the key during BitLocker setup
  4. 4Enter the 48-digit recovery key when prompted at the BitLocker recovery screen
  5. 5After recovery: suspend BitLocker, update BIOS, then resume BitLocker to re-seal with new measurements
  6. 6Prevent future prompts: suspend BitLocker before making hardware or BIOS changes

Tags

bitlockerrecovery-keyencryptiontpmdrive-locked

Related Items

windows-disk-bitlocker-recovery

More in Security

windows-defender-errorsWindows Defender Errors — Antivirus Not Working or Updating
Error
windows-error-0x80073b01-defender-serviceWindows Error 0x80073B01 — Windows Defender Service Failed to Start
Error
mac-gatekeeper-app-blockedMac Gatekeeper — App Cannot Be Opened (Unidentified Developer)
Warning
mac-filevault-recovery-errorsMac FileVault Errors — Encryption, Decryption & Recovery Key Issues
Error
mac-keychain-errors-passwordsMac Keychain Errors — Password Prompts, Locked Keychain, and Repair Guide
Warning
linux-ssl-tls-certificate-errorsLinux SSL/TLS Certificate Errors — Expired, Self-Signed & Chain Issues
Warning

Frequently Asked Questions

Without the recovery key, the encrypted data is permanently inaccessible. Check Microsoft account, Azure AD, USB drives, printouts, and IT department. If none work, you must reinstall Windows.