Answer:
To start Disk Management:
Log on as administrator or as a member of the Administrators group.
Click Start -> Run -> type compmgmt.msc -> click OK.
Alternatively, right-click on the My Computer icon and select 'Manage'.
In the console tree, click Disk Management. The Disk Management window appears. Your disks and volumes appear in a graphical view and list view. To customize how you view your disks and volumes in the upper and lower panes of the window, point to Top or Bottom on the View menu, and then click the view that you want to use.
Explanation:
You'll need to open the Disk Management tool if you want 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 that most other software on your computer is.