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I've deleted my F drive in order to extend volume of C. Now I've to delete this free space. But the delete partition option is disabled. Why? What should I do now?

Disabled delete partition

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    Your screenshot shows the context menu of free space, which is not a partition, so it can't be deleted. Are partition context menus disabled as well? Please edit your question and update the screenshot.
    – gronostaj
    Sep 19, 2018 at 7:01
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    You delete something and get free space. What do you expect to get by deleting free space? Sep 19, 2018 at 7:22
  • I want to make it unallocated space in order to extend volume of C drive. Now Extend volume option in C drive is disabled! Sep 19, 2018 at 7:29
  • To extend C: you need to shrink the extended partition (dark green box). I think in your case this is technically possible without moving filesystems, a good tool should be able to do this in place (I cannot recommend one though, not my scope). Then you will have this free space outside of the extended partition, adjacent to C:, which will make extending C: possible. Sep 19, 2018 at 7:30
  • The green boarder has been the unallocated space. Besides, the green boarder free space is next to drive C. You can right click on the drive C . You may see the function of expand the drive in the right click menu.
    – Peter.G
    Sep 19, 2018 at 9:02

1 Answer 1

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If you look at your screenshot your will notice a green boarder around some of the partitions that's also enclosing the "old" partition. This is what's called an extended partition. It's likely a disk that uses the MBR format instead of GPT.

As such you're only supposed to have 4 partitions on it. The workaround to have more is to have one of the four primary partitions be an extended partition which can contain logical partitions.

Essentially you already freed up space within the extended partition.

You currently have three primary petitions (System, C: and the extended partition) and within your extended partition you have 3 more logical partitions and 207 GB of free space which you could use to setup another logical partition. To create a fourth primary partition you would need to rearrange your partition layout which can not be done with the windows tool (easily) as it would require you to shrink the extended partition to have those 207 GB be outside of it either at the front or back.

You will need to user other tools to do this kind of reallocation (there are quite a few of them). Make sure to backup your data before as it is considered a "dangerous" operation as you need to redefine the borders of partitions and/or move the data.

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