Bitlocker with TPM - Drive can only be accessed with laptop that Bitlocker with TPM was setup on? - Microsoft Q&A (2024)

FAQs

Bitlocker with TPM - Drive can only be accessed with laptop that Bitlocker with TPM was setup on? - Microsoft Q&A? ›

If BitLocker is set up with TPM on a drive, the drive can only be accessed on the laptop it was set up on or with the Recovery Key. This is because the encryption keys are tied to the TPM chip on the original laptop.

Press Windows+R and type gpedit.

3. Click Operating System Drives and then double-click on Require additional authentication at startup. 5. Under “Options,” ensure that “Allow BitLocker without a compatible TPM” is checked.

BitLocker can also be used without a TPM by reconfiguring the default BitLocker settings. BitLocker will then store the encryption keys on a separate USB flash drive which must be inserted each time before you start the computer.

Navigate to Computer Configuration > Administrative Templates > Windows Components > BitLocker Drive Encryption > Operating System Drives. Locate the "Require additional authentication at startup" policy and double-click it. Change the policy setting to "Enabled" and select "Allow BitLocker without a compatible TPM".

Does BitLocker support multifactor authentication? Yes, BitLocker supports multifactor authentication for operating system drives. If BitLocker is enabled on a computer that has a TPM version 1.2 or later, additional forms of authentication can be used with the TPM protection.

To clear the TPM

Select Security processor troubleshooting. Select Clear TPM. You'll be prompted to restart the computer. During the restart, you might be prompted to press a button to confirm that you wish to clear the TPM.

Click Start, click Control Panel, click System and Security, and then click BitLocker Drive Encryption. Look for the drive on which you want BitLocker Drive Encryption turned off, and click Turn Off BitLocker. A message will be displayed, stating that the drive will be decrypted and that decryption may take some time.

BitLocker and TPM

BitLocker provides maximum protection when used with a Trusted Platform Module (TPM), which is a common hardware component installed on Windows devices. The TPM works with BitLocker to ensure that a device hasn't been tampered with while the system is offline.

Each TPM chip has a unique and secret RSA key that is embedded into it on production. If a TPM is used for security features such as BitLocker or Dell Data Security (DDS), that security must be suspended before clearing the TPM or replacing the system board.

To exempt a user from BitLocker encryption

Create a Group Policy Object setting by using the Microsoft BitLocker Administration and Monitoring Group Policy template and associate it with the Active Directory group that you created in the previous step.

Can you have secure boot without TPM? ›

If the signatures are good, the PC boots, and the firmware gives control to the operating system. Secure Boot does not encrypt the storage on your device and does not require a TPM. When Secure Boot is enabled, the operating system and any other boot media must be compatible with Secure Boot.

BitLocker is their free, built-in encryption solution designed for Windows operating systems.

Bitlocker recovery mode can be triggered by a number of situations, including: A malicious attempt by a person or software to change the startup environment. Rootkits are one example. Moving the BitLocker-protected drive into a new computer.

To unlock their drives, users must open “This PC” (or “My Computer”, depending on the version of Windows), right-click on the encrypted drive icons with the locked yellow padlock icon, click "Unlock Drive" and provide the Password.

Navigate to Settings > Security > TPM Security. Note if it says "TPM" or "TPM 2" Click the "Clear" radio button or checkbox. If prompted about clearing the TPM chip, click yes/ok.

The most common cause of TPMS sensor failure is battery exhaustion. TPMS sensors have built-in batteries with a limited lifespan.

To end a TPM lockout, you must provide a valid owner authorization value. You can enter an owner authorization value or specify a file that contains the value. If you do not provide a value, the cmdlet attempts to use a value stored in the registry.