You need to open the Disk Management tool to partition a hard drive, format a hard drive, change a drive letter, or perform other disk-related tasks. You won't find a shortcut to Disk Management in the Windows Start menu or Apps screen because it's not a program in the same sense as most other software.

The most common way to open Disk Management, regardless of operating system, is through the Computer Management utility, described below.

Open Control Panel. In most versions of Windows, Control Panel is most easily accessible through its shortcut in the Start menu or the Apps screen.

Select System and Security. If you are viewing the Large Icons or Small Icons view of Control Panel, you will not see this link. If you are in one of these views, select Windows Tools or Administrative Tools and go to step 4.