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I was trying to extend my C drive to cover unallocated space, when an error told me that there was not enough usable free space on my disk to extend the volume. However, there is clearly 130GB of unallocated space (this is from removing a linux installation).

When I checked my partitions I realised that there was an 'unknown' primary partition that I think might be causing the error because it obstructs the C drive from being adjacent to the unallocated space, but I'm not too sure.

If anyone can tell me what this 'unknown' partition is and whether I can remove it that would be great.

Also, any solution to the not enough space error would be greatly appreciated.

  • Disk management

    Not enough space error

    Partitions as shown on diskpart
JW0914
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user18481176
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1 Answers1

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In a comment, the OP posted:

The [partition type] UUID is

bc13c2ff-59e6-4262-a352-b275fd6f7172

By selecting Show on the Partition type GUIDs section of the Wikipedia article “GUID Partition Table”, one to confirm the UUID is for a Linux Extended Boot Loader (XBOOTLDR) partition. I assume this is part of the now removed Linux installation. You should be able to delete this partition without affecting your Windows installation. However, if you are still using Grub from the removed Linux installation to boot Windows, then you should enter the command below in a Administrator Command Prompt window.

bcdedit /set {fwbootmgr} displayorder {bootmgr} /addfirst

The above command makes sure the Windows Boot Manager is first in the UEFI boot order. If desired, you can see the Microsoft website BCD System Store Settings for UEFI for more information.

David Anderson
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