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How to make a USB Unbootable using cmd?

Last Updated : 29 Oct, 2022
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A bootable USB is a disk that is used to boot up a system for the installation of an Operating system like Linux, macOS, windows, etc. A USB can be made bootable using a command line only for the systems that have windows installed (7/8/10 or higher). A normal USB drive is used for purpose of copying data from one computer to transfer data to another computer, while a bootable Pendrive is used for performing upgrades and updates on a computer. After a USB is turned into a bootable drive it also acts like a normal USB storage device that has an ISO image of an Operating system saved on it, if using a USB drive as a storage medium is your priority so you should always consider turning the bootable drive to a normal drive. 

Steps to Make USB Unbootable using CMD

Step 1: Open the command prompt by pressing windows + R (and type cmd) or you can go to the Start Menu and type cmd. make sure you run the command prompt as Administrator.



Step 2: Type diskpart and press enter, The diskpart commands interpreter helps you manage your computer’s drives (disks, partitions, volumes, or virtual hard disks).



Step 3: Type List disk and press enter. This command will list all the active disks in your system.



Step 4: Type select disk n (where n is the number of your disk) and press enter. Usually, the USB drives are disk 1, but make sure you check before selecting any disk.



Step 5: Type clean and press enter. It is very necessary to clean the disk so that the disk images or iso files could be deleted.



Step 6: Type create partition primary and press enter.



Step 7: Type Active and press enter.



Step 8: Type format fs= fat32 quick (this is the file system that the disk will be using) and press enter (wait for a while process gets completed). the most famous partition is NTFS and windows also uses this file system but sometimes drives do not support this so use fat32.



Step 9: Type Assign and press enter.



Now you can exit the command prompt by typing exit, your bootable USB drive is now unbootable and ready to use. You can use it as a normal storage device for transferring data from one to another computer. 

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