Introduction: Disk management in Windows is possible from the command line, especially with tools such as diskpart. Diskpart can be scripted for quicker disk management. Requirements: Access to the Windows command line and a file editor. Procedure: Open a file editor and enter diskpart commands such as: list disk select disk 1 offline disk The above will simply offline the second disk recognized by diskpart. This disk can be onlined at another time. Next, you can save this file with a .txt file extension. With the command line open, you can run this script by typing: diskpart /s C:\Users\User\Folder\filename.txt and the disk will then be offlined. More Information: For a list of diskpart commands, type: help within a diskpart session.