Windows 10: Cant extend C: partition

Discus and support Cant extend C: partition in Windows 10 Gaming to solve the problem; I have a unallocated partition that I wanted to add to the C: drive but it seem like I cant do that? Any help would be appreciated..!!... Discussion in 'Windows 10 Gaming' started by ellen joe, Apr 25, 2025.

  1. ellen joe Win User

    Cant extend C: partition


    I have a unallocated partition that I wanted to add to the C: drive but it seem like I cant do that? Any help would be appreciated..!!

    :)
     
    ellen joe, Apr 25, 2025
    #1

  2. How to extend C partition

    Hi Kevin,

    Thank you for the information provided.

    Please to inform you that you need to have an “unallocated disk space” to the right of the Partition\Volume you wish to extend on the same drive. Only when “unallocated disk space” is available “extend” option is highlighted.

    I suggest you to try these steps and check if they helps.

    Step1: Press Windows + R and Diskmgmt.msc and try the following

    a. Right click the basic volume want to extend.

    b. Click extend volume.

    c. Follow the instruction on the screen.

    Step2: Open a command prompt and type diskpart.

    At the DISKPART prompt, type list volume. Make note of the basic volume you want to extend.

    At the DISKPART prompt, type select volume <volumenumber>. This selects the basic volume volumenumber that you want to extend into contiguous, empty space on the same disk.

    At the DISKPART prompt, type extend [size=<size>]. This extends the selected volume by size megabytes (MB).

    Hope this helps. If the issue remains unresolved, please get back to us and we would be happy to help.
     
    Sudharshan M K, Apr 25, 2025
    #2
  3. -xKevin- Win User
    How to extend C partition

    I don't understand stemp 2. What's the volume number for C:? What do I put for [size=<size>]?
     
    -xKevin-, Apr 25, 2025
    #3
  4. Cant extend C: partition

    How to extend C partition

    Hi Kevin,

    Thank you for posting your query on Microsoft Community.

    I would suggest you try the following steps and see if it helps.

    1. Right-click on the partition (in your case, Data) and select
    Delete Volume.

    2. When the prompt appears click Yes.

    3. The partition will now display as Unallocated.

    4. Now, right-click on C: Drive and select Extend Volume.

    5. Click on Next. If you wish to extend all the unallocated partition to C: drive, then click
    Next otherwise next to select the amount of space in MB
    text box type in the space (in MB) to merge with C: drive.

    6. Click on Finish.

    Note: In disk management, D: drive must be next to the C: drive on the right-side only then you can extend C: drive.

    Hope this helps. Please respond if you have further related queries.

    Regards,
     
    Jesinta Rozario, Apr 25, 2025
    #4
Thema:

Cant extend C: partition

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