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Windows 7: Problem with Bitlocked USB External HDD

25 Oct 2009   #1

windows 7
Problem with Bitlocked USB External HDD

I only installed Win 7 Ultimate yesterday and have been playing around investigating features. I decided to install Bitlock on an external USB drive.
I did this from within Help & Support. I've got a password and I've got a Bitlocker Drive Encryption Recovery Key. The encryption started and was immediately paused and now I can't go backwards or forwards. It wont let me do anything.
In Manage Bitlock almost everything leads to the message "The BitLocker metadata for the encrypted drive is not valid. You can attempt to repair the drive to restore access" but I can find no way of doing so.
In windows explorer I can see all the files on the drive but if I try to copy them to another drive I'm told the files cannot be found.
Obviously I need assistance.
This is my first post in this forum so if I'm in the wrong place please redirect me. Thanks.

My System SpecsSystem Spec

23 Jul 2010   #2

Windows 7 Ultimate
Bitlocker help

I just did the samething. Bitlocker froze during the encryption at 90%. I found a way to get my drive back and functioning.
1.Restart windows with drive inserted.
2.Go to Manage Bitlocker
3.Turn off Automatic Unlock
4.Remove USB Drive and reinsert into slot
Now when it ask for you to unlock it DON't. Just close the password window.
Go to Start menu, Computer, Right click the drive, Chose to format the drive.
You will lose all the files on the drive but, you will get use of the drive back.
Hope it works for you.
My System SpecsSystem Spec
23 Jul 2010   #3

MS Windows 7 Ultimate SP1 64-bit


If all solutions fail and you find you can not use the external drive, then

Use DiskPart's CLEAN ALL command on the drive to put you back to a drive which you can format, etc, and use as normal.

CLEAN ALL is going to overwrite each and every byte on the external drive with zeroes.


type DiskPart, Enter key
type List disk, Enter key
note the numeral of the disk you want to clean
for example purposes, Iíll be using the numeral 0
type Select disk 0, Enter key
type Detail disk, Enter key
this info will let you know if you selected correctly
type Clean ALL, Enter key
your entire disk is being overwritten with zeros.
This can take a considerable amount of time
type EXIT, Enter key (only after Clean is finished)
type EXIT, Enter key (this gets you back where you were)
My System SpecsSystem Spec

02 Aug 2010   #4

windows 7
Bitlocked External HDD Drive.

Thanks guys for your suggestions. The problem occurred last year and must have been solved long ago but I've no idea how. However your suggestions have been noted for the future
My System SpecsSystem Spec
02 Aug 2010   #5
Borg 386

Win 7 32 Home Premium, Win 7 64 Pro, Win 10

This may be relevant to what you described. You mentioned that it "paused", which may have caused a problem. According to this article, if anything is interrupted while the process is going on, it can cause problems. Here are a couple articles, hope this helps you some:

Repair-bde.exe Parameter Reference

Bitlocker not opening Drive after accepting securities keys

How to obtain the BitLocker Repair Tool

Windows Vista and Windows Server 2008 for x86-based systems (KB928201)

If you are using Windows Vista or Windows Server 2008 for x86-based systems, visit the following Microsoft Web site to obtain this tool: (
Windows Vista and Windows Server 2008 for x64-based systems (KB928201)

If you are using Windows Vista or Windows Server 2008 for x64-based systems, visit the following Microsoft Web site to obtain this tool: (
My System SpecsSystem Spec

 Problem with Bitlocked USB External HDD

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