How can I use DiskPart to extend a volume?

A. You can use the DiskPart utility from the Windows 2000 Server Resource Kit or the Win2K Professional Resource kit to extend an existing volume by performing the following steps:

Download the DiskPart utility from the Microsoft website, then install it on your computer.
Go to Start, Run, then type
```
cmd
```
to start a command-line session.
Type
```
diskpart
```
to start a DiskPart session.

Type

list volume

to list the current volumes. The list will look like

   Volume ### Ltr Label Fs Type       Size  Status   Info
   ---------- --- ------------------- ----- -------- -------
   Volume 0   C   NTFS Partition      10 GB Healthy  System
   Volume 1   D   Data NTFS Partition  9 GB Healthy  Pagefile

Type
```
select volume <volume number>
```
to select the volume you want to extend.
Type
```
extend
```
to extend the selected volume. If you don't pass any parameters, DiskPart will use all unpartitioned space on the current disk. Alternatively, you can type
```
extent size=<size in MB> disk=<disk number>
```
to set a size and disk to use for the extension.
Type
```
exit
```
when you're finished.

You can extend only volumes created on a dynamic disk, not volumes created on a basic disk that you've upgraded. If you try to extend volumes created on a basic disk, you'll receive the error "DiskPart failed to extend the volume. Please make sure the volume is valid for extending."

Learn more from "Initializing Windows Disks with DiskPart."

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