Windows Bit. Locker Drive Encryption Frequently Asked Questions. Windows? How does it work?
Windows Bit. Locker Drive Encryption is a data protection feature available in Windows Vista Enterprise and Windows Vista Ultimate for client computers and in Windows Server 2. Bit. Locker provides enhanced protection against data theft or exposure on computers that are lost or stolen, and more secure data deletion when Bit.
Locker- protected computers are decommissioned. Data on a lost or stolen computer is vulnerable to unauthorized access, either by running a software attack tool against it or by transferring the computer's hard disk to a different computer. Bit. Locker helps mitigate unauthorized data access on lost or stolen computers by combining two major data- protection procedures. Encrypting the entire Windows operating system volume on the hard disk.
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Bit. Locker encrypts all user files and system files in the operating system volume, including the swap and hibernation files. Once the operating system volume has been encrypted, Bit.
Locker can encrypt other volumes. This feature requires a computer running Windows Vista Enterprise with Service Pack 1 (SP1), Windows Vista Ultimate with SP1, or Windows Server 2. On computers that have a Trusted Platform Module (TPM) version 1. Bit. Locker uses the enhanced security capabilities of the TPM to help ensure that your data is accessible only if the computer's boot components appear unaltered and the encrypted disk is located in the original computer. Bit. Locker is tightly integrated into Windows Vista and provides enterprises with enhanced data protection that is easy to manage and configure.
For example, Bit. Locker can use an existing Active Directory Domain Services (AD DS) infrastructure to remotely store Bit. Locker recovery keys. Bit. Locker also provides a recovery console that enables data retrieval for computers that are not members of the domain or computers that are unable to connect the domain (for example, computers in the field). Does Bit. Locker support multifactor authentication? If you enable Bit. Locker on a computer that has a TPM version 1.
TPM protection. Bit. Locker offers the option to lock the normal boot process until the user supplies a personal identification number (PIN) or inserts a USB device (such as a flash drive) that contains a Bit.
Locker startup key or, if you are running Windows Vista with SP1 or Windows Server 2. PIN and the USB device can be required.
These additional security measures provide multifactor authentication and helps ensure that the computer will not start or resume from hibernation until the correct authentication method is presented. What are the Bit. Locker hardware and software requirements? To take advantage of all Bit. Locker features, your computer must meet the hardware and software requirements listed in the table below.
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Bit. Locker hardware and software requirements. Requirement. Description. Hardware configuration.
254 Responses to “Use the Remote Shutdown Tool to Shutdown, Restart, or Logoff a Local or Networked Computer” Subscribe to this guide's comments RSS feed. That is wrong information. A 64-bit capable system will downgrade and operate 32-bit software with no issues; however, a 32-bit system in NOT capable of running 64. My HP desktop with Vista Home Premium didn't come with a Vista installation disk. I want to fix the MBR (I got a "non-standard MBR" message when I tried to restore an.
Computer must meet the minimum requirements for Windows Vista. For more information about Windows Vista requirements, see http: //go.
Link. Id=8. 32. 33. Operating system. Windows Vista Ultimate or Windows Vista Enterprise. Both include Bit. Locker Drive Encryption. Hardware Trusted Platform Module (TPM)*TPM version 1.
BIOS configuration. Trusted Computing Group (TCG)- compliant BIOS.
The system volume partition must be at least 1. GB) and set as the active partition.*A TPM is not required for Bit. Locker; however, only a computer with a TPM can provide the additional security of pre- startup system integrity verification. Why are two partitions required?
Why does the system volume have to be so large? Two partitions are required to run Bit. Locker because pre- startup authentication and system integrity verification must happen outside of the encrypted operating system volume. This configuration helps to protect the operating system and the information in the encrypted volume. The unencrypted system volume should be at least 1. GB, which allows enough space for boot files, the Windows Pre- Execution environment (Win.
PE), and other files that may be specific to setup or upgrade programs. Computer manufacturers and enterprise customers can also store system tools or other recovery tools in this volume. Which TPMs does Bit. Locker support? Bit. Locker supports Trusted Platform Module (TPM) version 1. Bit. Locker does not support older TPMs. Version 1. 2 TPMs provide increased standardization, security enhancement, and improved functionality over previous versions.
Windows Vista was designed with these TPM improvements in mind. How can I tell whether my computer has a TPM version 1. In the Bit. Locker control panel, click the Turn On Bit. Locker link. If you receive the following error message, then either your computer does not have a TPM version 1. BIOS is not compatible with Bit. Locker or with the TPM: A TPM was not found. A TPM is required to turn on Bit.
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Locker. If your computer has a TPM, the contact the computer manufacturer for Bit. Locker- compatible BIOS. If you receive this error message, contact the computer manufacturer to verify that the computer has a TPM version 1.
BIOS update. Some computers might have TPMs that do not appear in the Windows Vista TPM Microsoft Management Console snap- in (tpm. If you think that your computer has a TPM version 1. BIOS update. In addition, some manufacturers provide a BIOS setting that hides the TPM by default, and other manufacturers do not make the TPM available unless it is enabled in the BIOS. If you believe that your TPM is hidden in the BIOS, consult the manufacturer's documentation for instructions that detail how to display or enable the TPM. Can I use Bit. Locker on a computer without a TPM version 1. Yes, you can enable Bit. Locker on a computer without a TPM version 1.
BIOS has the ability to read from a USB flash drive in the boot environment. This is because Bit. Locker will not unlock the protected volume until Bit. Locker's own volume master key is first released by either the computer's TPM or by a USB flash drive containing the Bit. Locker startup key for that computer. However, computers without TPMs will not be able to use the system integrity verification that Bit.
Locker can also provide. To help determine whether a computer can read from a USB device during the boot process, use the Bit. Locker System Check as part of the Bit.
Locker setup process. This system check performs tests to confirm that the computer can properly read from the USB devices at the appropriate time and that the computer meets other Bit. Locker requirements. To enable Bit. Locker on a computer without a TPM, use Group Policy to enable the advanced Bit. Locker user interface. With the advanced options enabled, the non- TPM settings appear in the Bit. Locker setup wizard.
For instructions about using Group Policy to enable the advanced user options, see http: //go. Link. Id=8. 32. 23. How do I obtain BIOS support for the TPM on my computer? Contact the computer manufacturer directly to request a Trusted Computing Group (TCG)- compliant BIOS. Ask the following questions when requesting a BIOS. Does the computer have a Windows Vista- ready BIOS? Does it pass Windows Vista logo tests?
Can I use Bit. Locker on a Windows XP–based computer? Bit. Locker is available in Windows Vista Ultimate and Windows Vista Enterprise.
Bit. Locker is not available in Windows XP. How do I upgrade my Windows XP–based computer to Windows Vista with the necessary disk configuration for Bit. Locker? You must first install Windows Vista Ultimate or Windows Vista Enterprise and then run the Bit. Locker Drive Preparation Tool. This tool automatically configures your disk partition layout for Bit.
Locker. For more information about the Bit. Locker Drive Preparation Tool, see http: //go. Link. Id=8. 32. 61.
What is the difference between disabling and decrypting when I turn off Bit. Locker? Decrypt completely removes Bit. Locker protection and fully decrypts the volume.
Disable keeps the data encrypted but encrypts the Bit. Locker volume master key with a clear key. The clear key is a cryptographic key stored unencrypted and unprotected on the disk volume. By storing this key unencrypted, the disable option allows for changes or upgrades to the computer without the time and cost of decrypting and re- encrypting the entire volume. Once the changes are made and Bit.
Locker is again enabled, Bit. Locker will reseal the encryption key to the new values of the measured components that changed as a part of the upgrade, and the clear key is erased. Do I have to decrypt my encrypted volume to download and install system updates and upgrades? Any system upgrades, including those from Windows Anytime Upgrades, require volume decryption prior to installation. Various non- Microsoft updates require that you disable Bit.
Locker prior to installing them. Updates from Microsoft Update do not require volume decryption or that you disable Bit.
Locker. Please refer to the table below to determine whether you must disable Bit. Locker or decrypt your volume before you perform an upgrade or update installation.
Upon re- enabling, Bit. Locker will reseal the encryption key to the new values of the measured components that changed as a part of the update. If these types of upgrades or updates are applied without decrypting or disabling Bit.
Locker, your computer will enter recovery mode when restarting and will require a recovery key or password to access the computer. Deployment and Administration. Can Bit. Locker deployment be automated in an enterprise environment? Yes, you can automate the deployment and configuration of Bit. Locker with scripts that make use of the Windows Management Instrumentation (WMI) providers for Bit. Locker and TPM administration.
How you choose to implement the scripts depends on your environment. You can also use the Bit. Locker command- line tool, manage- bde. Bit. Locker. For additional information about writing scripts that make use of the Bit. Locker WMI providers, see http: //go. Link. Id=8. 06. 00.
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