locked
Bitlocker Error on Windows 7 Enterprise RRS feed

  • Question

  • Hi,

    I'm trying to encrypted laptop using bit locker but i keep getting this message "Bitlocker Setup could not find a target system drive. You may need to manually prepare drive for Bitlocker"

     


    • Edited by lalaJee Friday, October 12, 2012 10:30 AM
    Friday, October 12, 2012 10:27 AM

Answers

  • Hi,

    Firstly if it's a laptop ensure it's plugged into to a power source. (It's not that causing this but still, ensure you do that)

    Next Ensure you have your TPM Initialized.

    Next open cmd as Administrator and run this command:

    C:\Windows\System32\BdeHdCfg.exe -target default -size 300 -quiet

    This will do the drive shrink, create the small Bitlocker partition and allow you to run the encryption


    PLEASE MARK ANY ANSWERS TO HELP OTHERS Blog: rorymon.com Twitter: @Rorymon

    • Proposed as answer by RorymonMVP Friday, October 12, 2012 2:42 PM
    • Marked as answer by lalaJee Tuesday, October 16, 2012 7:58 AM
    Friday, October 12, 2012 2:42 PM
  • Following are the two possible reasons of this behaviour.

    After the active partition size has been reduced to 1.5 GB, it should contain a minimum of 10 percent of free space. So, insufficient free disk space might prevent the tool to operate.

    The BitLocker Drive Preparation Tool procedures involve steps like defragmenting and resizing the partitions. But some unmovable files, such as Windows resgistry, NTFS metadata files, page files and hibernation files, can halt the task.

    In this world there is no problem without a solution. So, here we are:

    To create sufficient free space on disk, you should delete the non-required files or move them to a different partition.

    For solving unmovable files issue, you should try disabling disk paging and hibernation and deleting the related files. If you still cannot use the BitLocker Drive Preparation Tool, reinstall Windows Vista and restore data from a suitable backup.

    If backup is not available then this is a major problem. To deal with such situations, there are a number of products available that can recover windows partitions. These are third-party tools, which are designed with exclusive technology of Windows Data Recover


    Wasif K Niazi

    • Proposed as answer by Wasif K Niazi Tuesday, October 16, 2012 7:50 AM
    • Marked as answer by lalaJee Tuesday, October 16, 2012 7:58 AM
    Tuesday, October 16, 2012 7:49 AM

All replies

  • Hi,

    Firstly if it's a laptop ensure it's plugged into to a power source. (It's not that causing this but still, ensure you do that)

    Next Ensure you have your TPM Initialized.

    Next open cmd as Administrator and run this command:

    C:\Windows\System32\BdeHdCfg.exe -target default -size 300 -quiet

    This will do the drive shrink, create the small Bitlocker partition and allow you to run the encryption


    PLEASE MARK ANY ANSWERS TO HELP OTHERS Blog: rorymon.com Twitter: @Rorymon

    • Proposed as answer by RorymonMVP Friday, October 12, 2012 2:42 PM
    • Marked as answer by lalaJee Tuesday, October 16, 2012 7:58 AM
    Friday, October 12, 2012 2:42 PM
  • I rebuild the laptop with winodws xp. I will try this in a feture.

    Thank you for your respones.

    • Proposed as answer by tracycai Monday, October 15, 2012 7:04 AM
    Monday, October 15, 2012 6:38 AM
  • "To turn on BitLocker Drive Encryption on the operating system drive, your computer’s hard disk must:
    • Have at least two partitions: a system partition (which contains the files needed to start your computer and must be at least 200 MB) and an operating system partition (which contains Windows). The operating system partition will be encrypted and the system partition will remain unencrypted so your computer can start. If your computer doesn't have two partitions, BitLocker will create them for you. Both partitions must be formatted with the NTFS file system.

    • Have a BIOS that is compatible with TPM or supports USB devices during computer startup. If this isn't the case, you will need to update the BIOS before using BitLocker. For more information on updating your BIOS, see Update the BIOS for BitLocker Drive Encryption."


    Wasif K Niazi

    • Proposed as answer by Wasif K Niazi Tuesday, October 16, 2012 7:12 AM
    Tuesday, October 16, 2012 7:12 AM
  • Hi Wasif,

    I had two partion on laptop one was 200MB (System) and 100GB (Primary).

    I also checked the BIOS to for TPM which was enable.

    This link not working. Update the BIOS for BitLocker Drive Encryption

    Tuesday, October 16, 2012 7:19 AM
  • Following are the two possible reasons of this behaviour.

    After the active partition size has been reduced to 1.5 GB, it should contain a minimum of 10 percent of free space. So, insufficient free disk space might prevent the tool to operate.

    The BitLocker Drive Preparation Tool procedures involve steps like defragmenting and resizing the partitions. But some unmovable files, such as Windows resgistry, NTFS metadata files, page files and hibernation files, can halt the task.

    In this world there is no problem without a solution. So, here we are:

    To create sufficient free space on disk, you should delete the non-required files or move them to a different partition.

    For solving unmovable files issue, you should try disabling disk paging and hibernation and deleting the related files. If you still cannot use the BitLocker Drive Preparation Tool, reinstall Windows Vista and restore data from a suitable backup.

    If backup is not available then this is a major problem. To deal with such situations, there are a number of products available that can recover windows partitions. These are third-party tools, which are designed with exclusive technology of Windows Data Recover


    Wasif K Niazi

    • Proposed as answer by Wasif K Niazi Tuesday, October 16, 2012 7:50 AM
    • Marked as answer by lalaJee Tuesday, October 16, 2012 7:58 AM
    Tuesday, October 16, 2012 7:49 AM