I had the need today to extend a Windows 2008 Server disk partition to add the rest of the unused hard drive space to the C: drive. A collegue of mine sent this to me but I though it would help to repost it.
These steps will extend a Windows 2008 disk partition.
First, go to the Windows disk management console and make sure that it sees the additional storage. If not, right-click on Disk Management and choose “rescan disks”
From command line:
diskpartlist volumeselect volume # (volume# for the drive you want to change)extend
The above command did not need a reboot and took affect immediately.
As usual this may not be the only way to solve the issue but “It Fixed It for Me”
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