use of bitlocker drive encryption RRS feed

  • Question

  • My OS is Win 7 ultimate.  My C: drive has 1.5 TB memory and is used only for OS and apps.  I also have an E: drive with 4 TB memory which I use only for data.  I tried to use bitlocker drive encryption to encrypt my E: drive.  I followed directions and turned on bitlock, selected E: drive, created password, printed out recovery key and started encryption.  After almost 24 hours, this morning the screen said encryption complete.  I tried to access E: drive but was denied access.  I got two messages:

         1st: "You need to format the disk in drive E: before you can use it.  Do you want to format it? Yes/NO"

         2nd: "E:\ is not accessible.  The volume does not contain a recognized file system.  Please make sure that all required file  
                 system drivers are loaded and the volume is not corrupted."                                                                                       I didn't get any boxes to enter password or any means to enter recovery key.  Just no way to access E:\ drive.  I tried to reopen bitlock app to undo the encryption, but it said "compatible TPM could not be found".  Now I'm stuck with an unusable E: drive and I'm afraid I may have lost all my data on it.  Help.                                                                                      

    Friday, August 7, 2015 5:22 PM


  • Hi Dunston,

    You can try to use the BitLocker Repair Tool to recover this drive and check if any helps:

    Using the BitLocker Repair Tool to Recover a Drive

    The BitLocker Repair Tool (Repair-bde) is a command-line tool included with Windows 7 and Windows Server 2008 R2. This tool can be used to access encrypted data on a severely damaged hard disk if the drive was encrypted by using BitLocker Drive Encryption. Repair-bde can reconstruct critical parts of the drive and salvage recoverable data as long as a valid recovery password or recovery key is used to decrypt the data.

    Best regards,

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    Niko Cheng
    TechNet Community Support

    Monday, August 10, 2015 6:31 AM