Win7 system, if we want to reassign the drive, the new volume How to operate, the next small series for you to introduce how to create a new drive.
Computer icon on desktop, right mouse button, open menu click "Admin" command
Eject the Computer Management window and click "Disk Management" under "storage" in the left window
Out of the interface right click on "unallocated" Local Disk, pop-up menu click "New Simple Volume"
Go to the new Simple Volume wizard and click Next to continue
Set the size of a simple volume, and if the remainder will re-create an unassigned partition, click Next to continue
Assign drive letter and path, if there is no special need, follow the default settings, click Next to continue
Come to the format partition interface, type "Local Disk" in the volume label, and the rest of the system has set the parameters for you, click Next to continue
Finally click the Finish button to close the new Simple Volume wizard
In Disk Management we can see that the volume is running properly