Windows 10 Recovery Download
What Is My Bitlocker Recovery Key

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Feb 03, 2019 I forgot bitlocker PIN on Win10. System gives me recovery key-id but I cannot enter characters like F,B,C etc that are included into the key-id. The input field that says 'enter key-id' takes digits only. What am I doing wrong? Ilya Hi, These articles may help you, please refer to the link: Find my BitLocker recovery key https://support.microsoft.com. How to Backup BitLocker Recovery Key for Drive in Windows 10 A BitLocker recovery key is a special key that you can create when you turn on Bitlocker Drive Encryption for the first time on each drive that you encrypt. You can use the recovery.

Windows 10

This topic for IT professionals describes how to recover BitLocker keys from AD DS.

Organizations can use BitLocker recovery information saved in Active Directory Domain Services (AD DS) to access BitLocker-protected data. Creating a recovery model for BitLocker while you are planning your BitLocker deployment is recommended.

This article assumes that you understand how to set up AD DS to back up BitLocker recovery information automatically, and what types of recovery information are saved to AD DS.

This article does not detail how to configure AD DS to store the BitLocker recovery information.

What is BitLocker recovery?

BitLocker recovery is the process by which you can restore access to a BitLocker-protected drive in the event that you cannot unlock the drive normally. In a recovery scenario, you have the following options to restore access to the drive:

The user can supply the recovery password. If your organization allows users to print or store recovery passwords, the user can type in the 48-digit recovery password that they printed or stored on a USB drive or with your Microsoft Account online. (Saving a recovery password with your Microsoft Account online is only allowed when BitLocker is used on a PC that is not a member of a domain).
A data recovery agent can use their credentials to unlock the drive. If the drive is an operating system drive, the drive must be mounted as a data drive on another computer for the data recovery agent to unlock it.
A domain administrator can obtain the recovery password from AD DS and use it to unlock the drive. Storing recovery passwords in AD DS is recommended to provide a way for IT professionals to be able to obtain recovery passwords for drives in their organization if needed. This method requires that you have enabled this recovery method in the BitLocker Group Policy setting Choose how BitLocker-protected operating system drives can be recovered located at Computer ConfigurationAdministrative TemplatesWindows ComponentsBitLocker Drive EncryptionOperating System Drives in the Local Group Policy Editor. For more information, see BitLocker Group Policy settings.

What causes BitLocker recovery?

The following list provides examples of specific events that will cause BitLocker to enter recovery mode when attempting to start the operating system drive:

On PCs that use BitLocker Drive Encryption, or on devices such as tablets or phones that use BitLocker Device Encryption only, when an attack is detected, the device will immediately reboot and enter into BitLocker recovery mode. To take advantage of this functionality Administrators can set the Interactive logon: Machine account lockout threshold Group Policy setting located in Computer ConfigurationWindows SettingsSecurity SettingsLocal PoliciesSecurity Options in the Local Group Policy Editor, or use the MaxFailedPasswordAttempts policy of Exchange ActiveSync (also configurable through Windows Intune), to limit the number of failed password attempts before the device goes into Device Lockout.
On devices with TPM 1.2, changing the BIOS or firmware boot device order causes BitLocker recovery. However, devices with TPM 2.0 do not start BitLocker recovery in this case. TPM 2.0 does not consider a firmware change of boot device order as a security threat because the OS Boot Loader is not compromised.
Having the CD or DVD drive before the hard drive in the BIOS boot order and then inserting or removing a CD or DVD.
Failing to boot from a network drive before booting from the hard drive.
Docking or undocking a portable computer. In some instances (depending on the computer manufacturer and the BIOS), the docking condition of the portable computer is part of the system measurement and must be consistent to validate the system status and unlock BitLocker. This means that if a portable computer is connected to its docking station when BitLocker is turned on, then it might also need to be connected to the docking station when it is unlocked. Conversely, if a portable computer is not connected to its docking station when BitLocker is turned on, then it might need to be disconnected from the docking station when it is unlocked.
Changes to the NTFS partition table on the disk including creating, deleting, or resizing a primary partition.
Entering the personal identification number (PIN) incorrectly too many times so that the anti-hammering logic of the TPM is activated. Anti-hammering logic is software or hardware methods that increase the difficulty and cost of a brute force attack on a PIN by not accepting PIN entries until after a certain amount of time has passed.
Turning off the support for reading the USB device in the pre-boot environment from the BIOS or UEFI firmware if you are using USB-based keys instead of a TPM.
Turning off, disabling, deactivating, or clearing the TPM.
Upgrading critical early startup components, such as a BIOS or UEFI firmware upgrade, causing the related boot measurements to change.
Forgetting the PIN when PIN authentication has been enabled.
Updating option ROM firmware.
Upgrading TPM firmware.
Adding or removing hardware; for example, inserting a new card in the computer, including some PCMIA wireless cards.
Removing, inserting, or completely depleting the charge on a smart battery on a portable computer.
Changes to the master boot record on the disk.
Changes to the boot manager on the disk.
Hiding the TPM from the operating system. Some BIOS or UEFI settings can be used to prevent the enumeration of the TPM to the operating system. When implemented, this option can make the TPM hidden from the operating system. When the TPM is hidden, BIOS and UEFI secure startup are disabled, and the TPM does not respond to commands from any software.
Using a different keyboard that does not correctly enter the PIN or whose keyboard map does not match the keyboard map assumed by the pre-boot environment. This can prevent the entry of enhanced PINs.
Modifying the Platform Configuration Registers (PCRs) used by the TPM validation profile. For example, including PCR[1] would result in BitLocker measuring most changes to BIOS settings, causing BitLocker to enter recovery mode even when non-boot critical BIOS settings change.
Note: Some computers have BIOS settings that skip measurements to certain PCRs, such as PCR[2]. Changing this setting in the BIOS would cause BitLocker to enter recovery mode because the PCR measurement will be different.
Moving the BitLocker-protected drive into a new computer.
Upgrading the motherboard to a new one with a new TPM.
Losing the USB flash drive containing the startup key when startup key authentication has been enabled.
Failing the TPM self-test.
Having a BIOS, UEFI firmware, or an option ROM component that is not compliant with the relevant Trusted Computing Group standards for a client computer. For example, a non-compliant implementation may record volatile data (such as time) in the TPM measurements, causing different measurements on each startup and causing BitLocker to start in recovery mode.
Changing the usage authorization for the storage root key of the TPM to a non-zero value.
Note: The BitLocker TPM initialization process sets the usage authorization value to zero, so another user or process must explicitly have changed this value.
Disabling the code integrity check or enabling test signing on Windows Boot Manager (Bootmgr).
Pressing the F8 or F10 key during the boot process.

Windows 10 Recovery Key Id