Extend primary partition

August 3, 2007 at 05:19:19
Specs: VISTA, E6550, DDR2 800 2Gb

My Vista Partition (boot partition) is 30 GB and i want to extend it to 80 GB. My HDD is 320 GB and i formated it into 4 partitions. The partitions are C(Vista), D, E, F. Below are my attempts to extend the C partition to 80 GB.

1. Vista Disk Management tool
- I deleted the D partition and then try to extend the C partition but the extend option is greyed out. Other partitions can be extended except C.

2. GParted live iso
- I burned the iso to a CD and booted it. I deleted the D partition and try to extend C but it says not enough free space. (I try to drag the slider to increase the size of the partition but the slider wont move because it is at the end of the column bar). Other partition can be extended.

3. I tried DiskPart command line utility tool that come with Vista. Again i deleted the D partition and try extend the size by typing the command -extend size=80000. It display the message "There is not enough free space to perform the operation".

Those were my failed attempts. Somewhere along the line i read that primary partitions can't be extended unless all the data on it are deleted/formatted first. Is it true? Is there any other way for me to extend my C partition (primary partition)?

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August 3, 2007 at 08:11:27

Is partition D: situated directly after C: in disk management or in another position?

I asked because Vista only allows you to extend if you have contiguous free space.

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August 3, 2007 at 11:40:56

I assume you only have one physical drive. When you create a partition from drive c, it becomes "extended partition."

If you want to create more partitions, you can only create them from the extended partition. The additional partition you created from the extended partition becomes "logical partition".

You cannot reallocate the space from the logical partition back to the primary partition (drive c). It has to come from the extended partition (drive d).

For more info, click on the link below.


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August 6, 2007 at 23:56:09

As I understand from the above explanations, you should remove all your partitions except C:, namely, D:, E:, and F: leaving the space behind C: blank, and then try to extend the primary C: partition.



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