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  [Solved] How to recover windows 7 bitlocker encrypted partition? 
 
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Hit Machine Jun 14, 2010, 11:57pm EDT Reply - Quote - Report Abuse
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Edited: Jul 02, 2010, 07:02am EDT

Replies: 46 - Views: 67848
I had 250 GB hard disk and had 6 partitions. I had installed windows 7 and one of my drive was bitlocker encrypted. When I opened 'disk management tool' in windows, it showed 7 partitions, the last being of around 100 MB in the end. I formatted that partition using disk management tool and instantly, I got blue screen error and the system was not able to restart after that.

I think that partition contained information about the partitions and MBR which was lost.

I then used - 'Active@ partition recovery' to recover the partition data of 5 partitions but was not able to recover the 6th - bitlocker encrypted partition. I have installed windows 7 again and it shows it as unallocated space.

Can anyone please help that how to recover that bitlocker encrypted partition? I have the password for the drive.


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Jun 15, 2010, 12:06am EDT Reply - Quote - Report Abuse
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Edited: Jun 15, 2010, 12:06am EDT

 
>> Re: How to recover windows 7 bitlocker encrypted partition?
If the encrypted partitions are still intact, you should be able to mount them from another BitLocker-enabled Windows (specific editions of Vista or 7) with the 48-digit recovery password via the command line tool manage-bde.wsf.

Some quick info: http://blogs.technet.com/b/steriley/archive/2006/11/25/bitlock...-line.aspx

Hit Machine Jun 15, 2010, 12:47am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
Thanks for your reply.

But this tool can be used when windows can identify the encrypted partition. And I am only able to see that partition as raw space. Please help.

Jun 15, 2010, 01:41am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
No, that's correct. If the partition is encrypted (and BitLocker doesn't know the decryption key), then it just looks like raw, random data.

Using that command line tool I mentioned, you can mount that raw partition as a decrypted partition to recover your files.

Hit Machine Jun 15, 2010, 01:58am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
I used the command line and the error message windows came as -

Script: C:\Windows\system32\manage-bde.swf
Line:23
Char:6
Error: The handle is invalid.
Code: 80070006
Source: Null

I am using windows 7 Ultimate, 64 bit edition. Please guide.

Hit Machine Jun 15, 2010, 02:06am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
When I opened the script file as told by you by clicking on edit, there was written in it that as under:

'NOTE: manage-bde.wsf has been replaced. Please use the replacement tool,
' manage-bde.exe, to perform BitLocker Drive Encryption management
' operations. This script is provided as a wrapper for backwards
' compatibility only.

I opened manage-bde.exe also and there are a number of tools available as under:

Parameter List:
-status Provides information about BitLocker-capable volumes.
-on Encrypts the volume and turns BitLocker protection on.
-off Decrypts the volume and turns BitLocker protection off.
-pause Pauses encryption or decryption.
-resume Resumes encryption or decryption.
-lock Prevents access to BitLocker-encrypted data.
-unlock Allows access to BitLocker-encrypted data.
-autounlock Manages automatic unlocking of data volumes.
-protectors Manages protection methods for the encryption key.
-tpm Configures the computer's Trusted Platform Module (TPM).
-ForceRecovery or -fr
Forces a BitLocker-protected OS to recover on restarts.
-ComputerName or -cn
Runs on another computer. Examples: "ComputerX", "127.0.0.1"
-? or /? Displays brief help. Example: "-ParameterSet -?"
-Help or -h Displays complete help. Example: "-ParameterSet -h"

Examples:
manage-bde -status
manage-bde -on C: -RecoveryPassword -RecoveryKey F:\
manage-bde -unlock E: -RecoveryKey F:\84E151C1...7A62067A512.bek

Now which one to use to convert raw disk into bitlocker identifiable disk?


Jun 15, 2010, 10:47am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
Manik Sood (93345) said on Jun 14, 2010 at 11:06pm PDT:
NOTE: manage-bde.wsf has been replaced.

Whoops, sorry. My Vista-BitLocker information is a bit dated (I never used it in Windows 7).

What exactly are you trying to do? Decrypt the whole drive? Mount it long enough to backup data?

Hit Machine Jun 15, 2010, 11:19pm EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
As my partition details were lost, my bitlocker encrypted partition is being appeared as raw / unallocated space in windows 7. I want that windows must be able to identify it as bitlocker encrypted partition.

What should I do to make it identifiable by windows? Earlier also I was using windows 7.

Any software / bitlocker command available to do this???

Jun 15, 2010, 11:24pm EDT Reply - Quote - Report Abuse
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Edited: Jun 15, 2010, 11:24pm EDT

 
>> Re: How to recover windows 7 bitlocker encrypted partition?
Try to use one of the unlock commands to mount it:
manage-bde -unlock C: -RecoveryPassword

Where C: is the partition letter.

Hit Machine Jun 16, 2010, 12:10am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
As the lost partition is appearing as unallocated space (Raw), No drive letter is assigned to it.

How to use this command then?

Jun 16, 2010, 12:50am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
You should still be able to assign a drive letter to it via Disk Management (Right-click Computer -> Manage). Make sure you don't format in there though!

Hit Machine Jun 16, 2010, 01:29am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
There is no such option like 'manage'. :-(

Jun 16, 2010, 01:32am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
Hrm, it might not be there by default ...

Try Control Panel -> Admin Tasks -> Computer Management.

Hit Machine Jun 16, 2010, 03:09am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
Yes, You are right. There is an option to create a simple volume of unpartitioned space. But this is in the last of the hard disk. (Unidentifiable bitlocker encrypted drive is in the end).

My computer crashed because earlier around 100 MB space was available in the end being used for storing partition data and other details and I formatted it while running windows 7. Computer restarted instantly after showing blue screen.

So I fear that if I make a simple volume of that all space again, partition data may not lose again as I am using windows 7 and it perhaps may again be saving partition data there.

What you say? Is it safe to give it a partition name when boot sector/MBR is stored in that space??

Hit Machine Jun 17, 2010, 05:16am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
Please help...

Jun 17, 2010, 05:32am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
Given your circumstances, I would say this:

Don't attempt to restore your drive to a normal BitLocker state. Just mount it, recover any data you need, and then format the entire drive and start over.

But wait, you say the area where you BitLocker drive is now "unpartitioned space"? I had understood it to be a "raw partition" ... if the former, you might have trouble -- if the latter, it's just a BitLocker encrypted partition (most likely).

Hit Machine Jun 17, 2010, 11:48pm EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
When i open disk management, there comes my 4 drives as C,D,E, and F and one comes without any drive letter written as - "Unallocated". Is there any difference in raw partition or unallocated space???

Usually if we delete some partition in hard disk consciously, it appears as unallocated space only. What is its relation with recovery?

Is there any software available to recover partition or it can be recovered (if possible) with bitlocker commands only???


Hit Machine Jun 17, 2010, 11:54pm EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
The appearance of the partition is similar as in the case of following link (Second Picture):

http://techblissonline.com/vista-partition-drive-disk-volume/

Hit Machine Jun 18, 2010, 06:51am EDT Reply - Quote - Report Abuse
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Edited: Jun 19, 2010, 01:41am EDT

 
>> Re: How to recover windows 7 bitlocker encrypted partition?
PLEASE HELP ME OUT...

Jun 19, 2010, 03:23am EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
That looks very bad I'm afraid. I was under the impression that the raw, encrypted partition was still there. I don't have any experience doing data recovery in that form.

Hit Machine Jun 19, 2010, 03:22pm EDT Reply - Quote - Report Abuse
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>> Re: How to recover windows 7 bitlocker encrypted partition?
Mcfly, Your guidance worked. I gave drive name to the last unallocated space without formatting it through disk management tool.

Then I used 'repair-bde' command tool with recovery password to recover the whole contents to another drive. But, after 100% decryption the drive to which the whole contents of encrypted partition were decrypted is appearing as RAW. When decrypting process completed after repair-bde command, there came message - use chkdsk <Drive letter> /f before using the volume.

I did the same but error came that chkdsk command is not available for raw drives.

What to do now? Please help.


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