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Disk Partition Storage transfer F: to C: drive

Cyan Aspects 60 Reputation points
2026-02-28T12:18:24.9633333+00:00

Hello,

So I'm hoping to extend volume my C: disk from the F:

But I don't wish to be deleting the F: due to having so much data and files that holds value to me.

Is there any way I can do it without losing a single bit of data? (While also still having the F: drive active if possible)

User's image

The partitions do allign in the same physical drive.

C: Roughly 200GB
F: Roughly 720GB (with so much dead space)

Oh, I also don't quite understand how to do a "full image data save"? Something called that backups all your personal files incase something goes sideways. So in the meantime, could I also get help with this one too?

Windows for home | Windows 10 | Files, folders, and storage
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  1. Volume Z 1,385 Reputation points Volunteer Moderator
    2026-03-01T23:22:02.1366667+00:00

    This is what you could do:

    First disable Recovery Environment. Run

    reagentc /disable
    

    Delete the Recovery Partition.

    Use the third party tool to merge drives C and F.

    Create a new Recovery Partition after the merged drive and reenable Recovery Environment.

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  2. DYARI BARHAM 31,966 Reputation points Independent Advisor
    2026-03-01T21:17:28.5333333+00:00

    Thanks for updating me.

    As mentioned, the reason you currently cannot extend C: using Disk Management is because of the 604 MB Recovery partition sitting between C: and F:. So, you can delete the 604 MB Recovery partition, however, I do not recommend deleting it unless you understand that it contains Windows Recovery Environment and removing it may disable advanced startup options.

    The safer method is to use a partition tool that can move partitions instead of deleting them.

    Neil D is correct that backup is essential. You must create a full system image backup first, as resizing partitions always carries risk. I would like to highlight another point regarding the size of the C: drive, which is 200 GB. This size is sufficient if you don't have many installed applications. Currently, you have 80 GB of free space, and you can remove or delete any unwanted data. In this case, there is no need to resize the partitions. https://support.microsoft.com/en-us/windows/free-up-drive-space-in-windows-85529ccb-c365-490d-b548-831022bc9b32 Please feel free to ask if you need further help.

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  3. DYARI BARHAM 31,966 Reputation points Independent Advisor
    2026-03-01T21:16:50.49+00:00

    Thanks for updating me.

    As mentioned, the reason you currently cannot extend C: using Disk Management is because of the 604 MB Recovery partition sitting between C: and F:. So, you can delete the 604 MB Recovery partition, however, I do not recommend deleting it unless you understand that it contains Windows Recovery Environment and removing it may disable advanced startup options.

    The safer method is to use a partition tool that can move partitions instead of deleting them.

    Neil D is correct that backup is essential. You must create a full system image backup first, as resizing partitions always carries risk.

    I would like to highlight another point regarding the size of the C: drive, which is 200 GB. This size is sufficient if you don't have many installed applications. Currently, you have 80 GB of free space, and you can remove or delete any unwanted data. In this case, there is no need to resize the partitions.
    https://support.microsoft.com/en-us/windows/free-up-drive-space-in-windows-85529ccb-c365-490d-b548-831022bc9b32

    Please feel free to ask if you need further help.

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  4. DYARI BARHAM 31,966 Reputation points Independent Advisor
    2026-02-28T13:06:56.4466667+00:00

    Hi ,

    I'm Dyari. Thanks for reaching out. I will be happy to assist you in this regard.

    Windows Disk Management can only extend a partition if unallocated space is directly to the right of it. Based on the screenshot, C: is blocked by that 604 MB recovery partition, so you cannot extend C: using built-in tools unless something is moved. Otherwise, you need to use third-party partitioning tools like the free version of AOMEI Partition Assistant.

    But, before touching partitions, create a full system image:

    Click Start > Control Panel > Backup and Restore (Windows 7) > Create a system image > Choose

    External hard drive (recommended) > Include C: & F: and let it complete. This creates a full image backup of everything.

    You can also use a third-party cloning tool like the free version of Macrium Reflect to clone your hard disk completely. If something breaks, you can restore the entire disk.

    Please let me know if you need further assistance.


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