Bitlocker Drive Encryption Error


  • I'm usingWindows 7Ulitmate Service Pack 1,and the need to encrypt the hard drive without some requirements. However,the encryption process is an error to turn on BitLocker. Any mind to solve this problem?

    wihout that error messages: "Bitlocker couldn't find target system drive. You may need to manually prepare your drive for Bitlocker"

    • Edited by Tuguldur.J Sunday, February 19, 2012 7:27 AM
    Sunday, February 19, 2012 7:26 AM


  • Hi,

    Before encrypting C drive, you need to meet the following requirements.

    1. The 100MB system partition must be created.
    2. At least 10 percent of the active partition must remain free after the partition size is reduced by 1.5 gigabytes (GB).

    Please manage enough space on C drive, then open a command prompt with administrator privileges and run the following command.

    bdehdcfg -target C: shrink –quiet -restart

    Hardware requirements for BitLocker Drive Encryption

    Niki Han

    TechNet Community Support

    Tuesday, February 21, 2012 6:19 AM

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