Windows
When you use windows operating system, if you want to create a new directory, you can click on the new folder by clicking on the right side of the mouse, then input the name of the directory. Or you can open the \'CMD\', and use the command \"MD < folderName >\" to create the folder. What’s more, if you want to delete the directory, you can drag the folder into the trash. You also can click on the folder then select \'delete\'. Finally, the folder will disappear.

Some usage else

Navigate to the Windows Desktop.

Right-click with your mouse on any blank portion of the Desktop.

In the menu that appears (like that shown in the picture to the right), click New and then Folder.

A new folder will appear. Type the name of the folder you want to use and then press Enter.

Linux
In the Linuxc operating system you can input \'mkdir+DirName\' in the DOS window to create folders. Users who want to create folders or directories must have write permission to the parent folder of the created folder. Also if you want to delete the directory, you can input \'rm+ DirName\' in the DOS window. Then you delete it successfully.