Many methods we can using to create partition For windows 7 (Computer Management and Diskpart) here is we using Computer Management tool in Win 7. This will show you how to create a new primary partition using Disk Management or ( Diskpart in the next Post) in Windows 7 from a empty unallocated partition or volume.
A primary partition is a type of partition created on a hard drive that can have a operating system installed on it. A primary partition functions as though it were a physically separate hard drive. By default on a MBR disk, you can create a maximum of 3 Primary partitions and 1 Extended partition with up to 128 logical volumes in the extended partition on a single hard disk.