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  Bitlocker Protected E Drive is Gone :( 
 
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Nayab Naseer Feb 07, 2011, 11:46am EST Reply - Quote - Report Abuse
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I have Bitlocker enabled on my Data Drive E: in Win7. Somehow I need to resize my D Drive for some free space from C: I use Partition magic in windows XP and never touched E: but when the system restarts the E: partition is gone what to do? I have my bitlocker security key saved in my usb. But I remake the E partition and format it and trying R-Studio Data Recovery anyone can help me I shall be thankful as I have very important and old data in my E Drive. Using WD 80 GB Pata drive


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Dr. Peaceful Feb 07, 2011, 12:05pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
Nayab Naseer said:
...But I remake the E partition and format it and trying R-Studio Data Recovery anyone can help me I shall be thankful as I have very important and old data in my E Drive. Using WD 80 GB Pata drive

Why, why, why did you do that?! Why would you remake and reformat the partition where you have important data that you care enough to encrypt it?!

The reason your E partition disappeared was most likely because you're resizing the partitions in the same drive. If it's on a separate drive, that wouldn't have happened. When it disappeared from you, the first thing you should do is NOT to touch the drive at all, to prevent any further damage to the data.

Now it may be too late, since you reformat it, plus the encryption will add another difficulty to recover the data. You may need professional data recovery, if those data worth for the price.

Nayab Naseer Feb 07, 2011, 01:43pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
What next bro? Tell me the pro services that recovers data for me on these circumstances.

john albrich Feb 07, 2011, 02:53pm EST Reply - Quote - Report Abuse
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Edited: Feb 07, 2011, 02:58pm EST

 
>> Re: Bitlocker Protected E Drive is Gone :(

If this is what happened, then I believe your encrypted data are not recoverable, even by "pro" services (but I would be interested if I'm wrong).

Here's why.

Some of this is speculation, but I think it's sound. I have not looked into the nitty-gritty details of Bitlocker, but have familiarized myself with the way it seems to work.

It's likely that using Bitlocker is why the resizing caused your E: drive to disappear. (Although the additional actions you took afterwards (formatting etc) definitely did not help. I'm with Dr. Peaceful there. One should also back-up ALL one's data on a drive before manipulating any drive, especially doing something as major as re-sizing partitions.)

The Bitlocker volume on the hard-drive probably wasn't seen as a "normal" Windows volume, so when you resized the partitions using Partition Magic that volume's space was considered un-used and "available" and re-claimed as needed.

Bitlocker uses encrypted raw-data on the disk to create a virtual disk that you see in Windows...e.g. the "E:" disk. However, in a robust encryption system, even the way it puts the data together to construct the virtual drive from the raw-data clusters on the hard drive is encrypted. This means that once your encrypted volume information is corrupted your ability to reconstruct USABLE data from the hard drive clusters is virtually impossible even if the encrypted file raw-data remain intact. Resizing partitions that includes a volume of this type will likely irreversibly corrupt the file management information.

And if I'm right that means while a data recovery program/service could pull data from the hard drive, it would NOT be able to tell how to put the encrypted data back together. You would be left with random 4KB chunks of data (the default NTFS cluster size). Even having the decryption key won't help because the file structure...the way it was setup when you created the Bitlocker volume...is almost certainly gone...and as far as I know, it's not duplicated in the TPM (Trusted Platform Module).

On another note, if your files are recoverable to a meaningful degree under these circumstances, then IMO that would mean Bitlocker is NOT very robust and should not be used to secure sensitive data because it has too much redundancy which would make it more vulnerable to unauthorized decryption.

Dr. Peaceful Feb 07, 2011, 05:19pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
Nayab Naseer wrote:
What to do who to contact which Pro website just tell me :(

It was a general suggestion. I have not needed to use data recovery service myself. So I don't know who provides reliable data recovery service, though I know they are generally very expensive. And like John mentioned, they may not be able to help either.

Good luck!

Chris M Feb 08, 2011, 02:20pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
Sounds like you're out of luck. Certainly though with such important data you have a backup?

--
It is said that when it comes to life, those who feel see it as a tragedy. Those who think see it as a comedy.
Jon Bailey Feb 08, 2011, 05:54pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
methinks weve missed something

"The world is a temple to the self, and these days, there's alot of believers"
Dublin_Gunner Feb 08, 2011, 09:27pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
Me thinks random OP PM'd McFly about this problem, much to McFly's disgust.


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Feb 09, 2011, 01:30am EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
Dub gets the cookie... :)

Dublin_Gunner Feb 09, 2011, 05:35am EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
McFly said:
Dub gets the cookie... :)



That's the second cookie I've received in less than 24 hours! Yay me!

Here's the first:
http://www.hardwareanalysis.com/content/topic/77404/

Lancool PC K62
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john albrich Feb 09, 2011, 05:55am EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(

Cookie Monster!!!! Run!!! AArrrrgh!!!

Nayab Naseer Feb 10, 2011, 12:09pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
Somehow I am able to recover some of my Important data by using some simple tools.
Thank you all including foul and abusing language users.

john albrich Feb 10, 2011, 05:29pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(

That's great! How much of the partition do you estimate you were able to recover?

Would you share the full details?

I've been spending time on this since the 7th and all the 3rd party file recovery programs I've looked into state that a Bitlocker encrypted partition must first be decrypted before any files can be recovered.

How did you restore your corrupted Bitlocker partition so it could be decrypted? I couldn't find a single successful recovery scenario for something like what you described.

Did you use the BitLocker Repair Tool to create a separate salvage disk? If so, I'm amazed it worked. The BRT must operate on a much lower level than the various descriptions and technical fora suggest. And if you used BRT, what did you use after that to rebuild the file structures?

Jon Bailey Feb 10, 2011, 06:48pm EST Reply - Quote - Report Abuse
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>> Re: Bitlocker Protected E Drive is Gone :(
Im also very interested in learning how you were able to recover your data

"The world is a temple to the self, and these days, there's alot of believers"

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