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So.. I need to edit the BCD for a partition on my local hard disk using a program called EasyBCD. This program needs the partition to be mounted (have a drive letter) so it can access \Boot\BCD, but when I enter the Disk Management program, the partition has no available actions. The only thing on the right-click menu is a help link with no relevant information.

Is there any program that can assign the letter for me or a tweak to enable changing drive letter for that partition?

Here is the information about the partition displayed in Disk Management:

  • Volume: [blank]
  • Layout: Simple
  • Type: Basic
  • File System: [blank]
  • Status: Heathy(EISA Configuration)
  • Capacity: 1.46GB
  • Free Space: 1.46GB
  • Fault Tolerance: No

I know for a fact that is the first primary partition, the filesystem is NTFS, and the label is TOSHIBA SYSTEM VOLUME.

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In the Disk Manager what are you right-clicking on? Are you right-clicking the volume area, or the "Disk #" panel (etc.)? Can you access the partition from within Windows itself? –  Ƭᴇcʜιᴇ007 Jul 15 '12 at 20:30
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You can use Disk Management to assign a drive letter, although it's rather odd that EasyBCD requires one. –  Harry Johnston Jul 15 '12 at 20:37
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That 1.46GB partition is too large for being the boot partition. This looks more like the Toshiba recovery partition. This is not the partition you are looking for. –  Robert Jul 16 '12 at 11:45
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1 Answer 1

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A NTFS, FAT or FAT32 partition can always be mapped to a drive letter. It is even done automatically by Windows if the partition is not "hidden".

For unhiding a partition you can use diskpart.exe for example or any Partition Tool/Editor. The difference is in partition type: "clear" NTFS, type is 07(hex) - "hidden" NTFS, type is 17(hex).

You can also try Visual BCD Editor for changing BCD contents.

The tool can edit every single item present in BCD not just a few elements. Drive and path of an application/loader can be changed/edited completely (e.g. a partition device can be changed to locateEx device(vhd) - no other tool offers such capabilities).

A BCD can be dropped on the VBCDE shortcut icon to open any BCD store so the problem is access of Windows Explorer to BCD in question.

Note:

The system BCD can be inacessible for Windows Explorer (reside on a hidden partition) but Windows makes it accesible by copying its contents to system registry (HKLM\BCD00000000).

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Thanks so much. Unhiding the partition seemed to have solved it. Never thought to check if it was hidden. Sorry for getting back to this question, I thought I had email notifications turned on. :) –  wolfo9999 Aug 4 '12 at 2:28
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