How to extend partition using diskpart.exe
Q: I have two partitions on a disk. I want to delete
partition E and extend partition C to use the full disk. How do I do that?
A: You need to delete partition E first.
And then, you can use diskpart to extend partition C:
1) Start -> Type "command prompt", right click it in the program list and
Run as Administrator
2) Run "diskpart"
3) Then "list volume", assuming Partition C is Volume 0
4) Then "select volume 0"
5) Then "extend size=xxx", xxx is in Megabyte
6) If it extends successfully, you will see "DiskPart successfully extended
Also refer to this links;
Diskpart failed to extend the volume
Extending partition diskpart.exe in Dell server
Extending C: partition-Proliant server-2003
How to Extend Raid5 HP DL380
Logically extending partitions onto another drive
Requirements for diskpart extend command
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