- Open Command Prompt from the START Menu
Enter the following commands -- one after another,
After you enter the Disk Partitions, list the volumes available,
Select the largest partition you currently see in the list, In this case, it is "Volume 2",
select volume 2
Now, extend the filesystem:
Your Windows install will display the correct disk information now.
In our setup we had this, which should be more or less similar to yours.