Windows

    BitLocker Drive Preparation Tool

    Select Language:
    The BitLocker Drive Preparation Tool configures the hard disk drives in your computer properly to support enabling BitLocker.
    • Note:There are multiple files available for this download.Once you click on the "Download" button, you will be prompted to select the files you need.
      Version:

      1

      File Name:

      Windows6.0-KB933246-x86.msu

      Windows6.0-KB933246-x64.msu

      Date Published:

      4/25/2008

      File Size:

      916 KB

      920 KB

      KB Articles: KB933246

        Windows BitLocker Drive Encryption is a feature that encrypts one or more volumes (drives) attached to your computer and that can use a Trusted Platform Module (TPM) to verify the integrity of early startup components. Because BitLocker encrypts the entire volume of data, it requires the computer to be configured with an active partition, used for startup, which is separate from the operating system volume. This is called a “split-load configuration.” User data is stored on either the operating system volume or additional data volumes, which can also be encrypted by using BitLocker.

        The BitLocker Drive Preparation Tool automates the following processes to configure the hard disk drive correctly:
        1. It creates a second volume, if one is not already present.
        2. It moves the boot files to the correct volume, and ensures that the operating system is correctly configured to find them at startup.
        3. It configures the correct volume as the active partition on the drive for startup.

        When the tool finishes, you must restart the computer. The computer’s hard disk drive will then be configured correctly for BitLocker.

        Note: In addition to having its hard disk drives configured correctly, your computer must meet specific hardware requirements to enable BitLocker, and you may need to initialize or configure the TPM before BitLocker can be enabled.
    • Supported Operating System

      Windows Server 2008, Windows Vista Enterprise, Windows Vista Enterprise 64-bit edition, Windows Vista Service Pack 1, Windows Vista Ultimate, Windows Vista Ultimate 64-bit edition

        Note: BitLocker does not need to be installed on the computer for you to use the BitLocker Drive Preparation Tool, but the system must be running.
      • To start the download, click the Download button at the top of this page and do one of the following:
        • Click Open to start the installation immediately.
        • Click Save to copy the download to your computer for installation at a later time.

    Popular downloads

      • 01

        Malicious Software Removal Tool

        This tool checks your computer for infection by specific, prevalent malicious software (including Blaster, Sasser, and Mydoom) and helps to remove the infection if it is found. Microsoft will release an updated version of this tool on the second Tuesday of each month.

      • 02

        DirectX End-User Runtime Web Installer

        The Microsoft DirectX® End-User Runtime provides updates to 9.0c and previous versions of DirectX — the core Windows® technology that drives high-speed multimedia and games on the PC.

      • 03

        Microsoft Security Essentials

        Microsoft Security Essentials provides real-time protection for your home or small business PC that guards against viruses, spyware, and other malicious software.

      • 04

        Windows 7 Upgrade Advisor

        Download and run the Windows 7 Upgrade Advisor to see if your PC is ready for Windows 7. It scans your hardware, devices, and installed programs for known compatibility issues, gives you guidance on how to resolve potential issues found, and recommends what to do before you upgrade.

    Loading your results, please wait...

    Free PC updates

    • Security patches
    • Software updates
    • Service packs
    • Hardware drivers

    Microsoft Suggests

    Sign up for OneDrive and get 15 GB of free online storage.
    OneDrive now comes with 15 GB of free online storage
    Get more space for all your photos, videos, and documents.
    Sign up now