As I noted at http://forums.cnet.com/7723-33042_102-583158/disk-management-won-t-allow-me-to-extend-empty-46gb-volume/?messageId=5412072#message5412072
You can't extend if there is a volume in the way. Plus other caveats.
Why is a video clip needed since the delete is clearly on that picture?
disk management won't allow me to extend empty 46GB volume.
the windows disk management will not allow me to delete any partitions. Do I need to do an Fdisk ? or use a third party program to do this ?
Before I do this I must create a windows setup disk because I do not have one at the moment , all I have is a Dell usb Restore.
would be good if there was a video clip of how to delete the partition.
here is the screen shot