Deleting Extended Partition

By hpum ·
I'm using Vista Ultimate and created an extended partition using diskpart utility in the command prompt. I made an error of not indicating the size so it ate up all the unallocated space of my HD. I would like to shrink this extended partition. The partition is still empty but what confuses me and stops me from simply deleting this in disk management snap in is if I can recreate it.

I get an alert that "this is an extended partition. The partition will be inaccessible if you delete it. are you sure you want to delete this partition?"

Does this mean that I cannot recreate a partition at all and not use all that HD space ever again? Is there away I can just reduce the partition without deleting it and having unallocated space again?

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All Answers

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If you Delete it

by Jacky Howe In reply to Deleting Extended Partiti ...

you will not be able to add Logical Partitions until it is recreated. When you setup a Drive you setup an Active Partition for the Operating System, then an Extended Partition to hold your Logical Drives.

You can set the size of the Extended Partition to what you like but you will lose access to the remainder of the Drive.

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alternative repair strategy

by nepenthe0 In reply to If you Delete it

I use the Partition Magic disc utility. The first step would be a 'merge' operation, recovering the entire hard drive capacity in a single primary 'volume'. Once that is accomplished, you can repartition the HD, allocating whatever space you wish to a 2nd 'logical' drive. I have never lost any files doing repartitioning with Partition Magic, but you should still back up your files. The safest way to back up everything is with Norton Ghost (Symantec), which creates a 'mirror' copy to an external HD or spanned CDs. You might be able to download Partition Magic as 'trial ware', and only purchase if you like the way it works.

Hope this helps.

Rick/Portland, OR

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I agree, use partition magic.

by ken In reply to alternative repair strate ...

I agree, use partition magic and backup first. I've played with other options and this is the best route to go.

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Not compatible

by hpum In reply to I agree, use partition ma ...

Thanks for the suggestions but I believe Partition Magic ain't Vista compatible. Anyone of you heard of Paragon Partition Manager? Anyone have reviews?

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Vista Help and Support

by Jacky Howe In reply to If you Delete it

Can I repartition my hard disk?

You must be logged on as an administrator to perform these steps.

Yes. It's possible in this version of Windows to repartition your hard disk by using the Shrink feature in Disk Management. You can shrink an existing partition or volume to create unallocated disk space, from which you can create a new partition or volume. (Often, the terms partition and volume are used interchangeably.)

Click to open Computer Management.‌ If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

In the Navigation pane, under Storage, click Disk Management.

Right-click the volume you want to shrink, and then click Shrink Volume.

Follow the instructions on your screen.

For detailed information on how to shrink a volume, open Disk Management, click Help on the menu bar, click Help Topics, click the Contents tab, click Disk Management: Welcome, click Managing Basic Volumes, and then click Shrink a Basic Volume.

If you have multiple partitions on your hard disk, you can delete and create partitions from the resulting unallocated space. When you delete a partition, all data on the partition will be erased.

You can also repartition hard disks with a third-party partitioning program. Several third-party manufacturers offer programs that allow you to repartition your hard disk without erasing data.

See also
Formatting disks and drives: frequently asked questions

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Reponse To Answer

by kelly_ In reply to If you Delete it

yep, that's true! It's not wise to delete system files or those you aren't familiar with in order to get unallocated space. even it is the extended space you got! Why not use the windows built-in "Disk Management" or run a 3rd party partition tool to resize your parition?!!

There's detailed information about this:http://www.partition-magic.org/server/change-windows-server-partition-size.html

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