Extend volume is not enabled in Windows 11

NndnG 1,101 Reputation points


I want to extend volume size of C: in Windows 11 but Extend volume is not enabled in Windows 11.

Please let us know, what I can do for it?

With Regards

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
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Windows 11
Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
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5 answers

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  1. Leon Laude 85,701 Reputation points

    Hi @NndnG ,

    In order to do this natively the unallocated space must be adjacent, i.e. next to the drive you want to extend.

    One way would be to use Diskpart to delete your recovery volume (the 508 MB one) and then you should be able to extend your C-drive, once done, re-create your Recovery partition.

    The other method is to use third-party software which may offer the option to extend right away.


    If the reply was helpful please don't forget to upvote and/or accept as answer, thank you!

    Best regards,

    8 people found this answer helpful.

  2. Docs 15,396 Reputation points

    This is not unique to Windows 11.

    It is related to the Microsoft disk management feature.

    Extend volume is available when there is unallocated space immediately to the right of C:

    When there is not free space extend volume appears grey in disk management.

    The extend volume cannot be performed when grey in any Windows edition / version (11, 10, 8.1, 7, etc.)

    ""You can use Disk Management to add space to an existing volume, extending it into empty space on the drive, but only if the empty space doesn't have a volume on it (it's unallocated) and comes immediately after the volume you want to extend, with no other volumes in-between, as shown in the following image. The volume to extend also must be formatted with the NTFS or ReFS file systems.""


    The volume may be able to be extended using third party software.

    Some third party software are:
    Mini Tool Partition Wizard Free

    Mini tool partition wizard has a Change Partition section: Move/resize, extend, merge, split

    If you wanted to only use disk management it may be able to be accomplished by deleting the recovery partition and then later recreating the recovery partition.

    Please remember to vote and to mark the replies as answers if they help.

    On the bottom of each post there is:

    Propose as answer = answered the question

    On the left side of each post: Vote = a helpful post

    2 people found this answer helpful.
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  3. Limitless Technology 39,481 Reputation points


    Here is the same query with a tutorial videos',


    --please don't forget to upvote and Accept as answer if the reply is helpful--


    Mohammed S

    0 comments No comments

  4. Jordan 0 Reputation points

    If the unallocated space is nonadjacent, Extend Volume will be disabled. Follow the method in the video to move your recovery partition to the end, then the unallocated space will be next to C drive.

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  5. jonathan 0 Reputation points

    Further the question:

    If the C: drive is extended, is WIN 11 smart enough to balance the storage space?

    Let us assume that the extended C: drive is a combination of the C1: (original C:) and C2: (original E) drives. Without going into a deep explanation of how SSD's work, if C1: (or C2:) is filled up, then the performance of C: will tank and rapidly degrade the life of the device, even though there is more than enough available space on C:.

    Note: the wear-leveling/garbage collection/trim needs significant space to operate efficiently; see https://pureinfotech.com/why-solid-state-drive-ssd-performance-slows-down/ and/or https://ultimatelytech.com/what-happens-ssd-full/ for an adequate explanation.

    So, will WIN 11 balance the space on the C1: and C2: drives so that neither ever fills?

    Note: yes, this is all because my Surface's WIN11 O/S will easily overflow my C: drive and most programs don't know how to install and operate and update without being on C:

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