How to expand drive partion C When drive is in use?

Pete Hewson 20 Reputation points
2026-01-29T06:56:58.2433333+00:00

I have 2 Hard drives in my Dell Inspiron 15/3000 Laptop. Drive C (boot) requires expanding. If I transfer all the data on Drive D (the immediately adjacent drive) to the second hard drive. Can I then create Unallocated space in the (now) empty Drive D which will allow me to expand drive C. and the transfer the data back? If so what would be the correct proceedure?

TIA Pete

Windows for home | Windows 10 | Files, folders, and storage
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  1. Q&A Assist
    2026-01-29T06:57:11.0866667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    Yes, you can create unallocated space on Drive D by transferring all its data to the second hard drive. Once Drive D is empty, you can delete the partition to create unallocated space, which will allow you to expand Drive C. Here’s a general procedure to follow:

    1. Backup Data: Before making any changes, ensure that you back up all important data from Drive D to the second hard drive.
    2. Delete Drive D:
      • Open Disk Management by right-clicking on the Start button and selecting Disk Management.
      • Locate Drive D, right-click on it, and select Delete Volume. This will create unallocated space.
    3. Extend Drive C:
      • Right-click on Drive C and select Extend Volume. Follow the prompts to use the unallocated space to expand Drive C.
    4. Restore Data: After successfully expanding Drive C, you can transfer the data back to Drive D if you wish to recreate it.

    Make sure to check that there is unallocated space immediately after Drive C for the extension to work. If there are any partitions between Drive C and the unallocated space, you may need to delete or move those partitions first.


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