Before learning how to create a partition on Windows 7, would be a good idea to learn what it means to partition the hard drive. In fact, the partition of the storage media or memory mass divided into isolated sections. In DOS, you can partition a disk, each partition behaves like a separate disk. Partitioning your hard drive is particularly useful if you run multiple operating systems. For example, you can reserve a partition for Windows and one for UNIX. In addition, the DOS partition and Windows can improve the efficiency of the disk. This is because the FAT system used by these operating systems automatically assigns cluster size based on the size of the disk: the disk size, the largest cluster. Unfortunately, large groups can result in loss of disk space, called slack space. There is an entire sector of the software industry devoted to building utilities that let you partition your hard drive.
Go to Start - right-click My Computer - Manage
You can see the Computer Management window. Now that storage space is growing, and under click on Disk Management.
Now select the drive to partition. For example, in this case I chose to drive E: When you select the disk partition, right-click on the menu and select Shrink Volume:
You see a window that says the hard disk size and the total amount available for contraction,
You can type the amount you want to reduce (this will be the size of the new partition) It can not be more than the amount available to you and remember that almost 1000 MB = 1 GB After clicking on the decline . Depending on the size and volume to shrink it might take some time. Just be patient and when it's done, you'll see a unallocated space. Select it and right click on it. Then select New Simple Volume. There are some setbacks. Follow the wizard that appears, and fill the partition size. After assigning a drive letter, you can do this by taking one of your choice. On the Formats page, make sure that NTFS is selected, then enter a name for the reader - ie. "anything" and click Next then Finish.
Now you have a new partition on your hard drive!