In this video, we learn how to partition a hard drive in Windows Vista. First, go to your desktop and run computer management. From here, go to disk management underneath the storage section. After this, right click on the D drive and then choose "shrink volume". Now you will see a new window appear with different options on what to shrink the volume to. Enter in the number, then click on the "shrink" button. After this, your partition will be finished on your hard drive. This will help you back up your computer so if it ever crashes you will still have your information saved.