One of the most important steps in Installing your own copy of Windows or creating new Startup Disks for Diagnostics, restoring your Windows Operating System or creating emergency startup utilities, is Creating your own Bootable USB Flash Drive. To make this easy as possible we’re going to use the most versatile pre-installed utility in Windows, Command Prompt.
Windows 10 Instructions
First, we will begin by loading Command Prompt
Left + Click Cortana or Search on the Taskbar
Type “CMD” or “Command Prompt” and you will see it listed
Right + Click on Command Prompt and select “Run as Administrator“
Once Command Prompt has loaded Type “Diskpart” and press the Enter key.
Type “list disk” and press Enter
Here we must make sure to select the appropriate disk, here I have a 16GB Flash drive connect so I would Type “Select Disk 2” and press Enter
Type “List Disk” and here you can see the * next to the selected disk **WARNING** This will be the Drive we are making changes to it is Essential this be correct or you risk modifying and losing data from others
Now type “List Part“
Type “Select Part 1” – You may have additional partitions on a Drive in my case the 16 GB Flash drive has only 1 partition
Now we have the Partition Selected type “Delete Part“
Now type “Create part primary“
Now we need to format the drive type “Format FS=FAT32 LABEL=”Windows 10″ QUICK” – We use Fat32 to make sure the Drive will be bootable on any system and the Label for the Drive name
Now simply open a Windows File Explorer, click the new drive and add the Files to the newly created Drive
This completes the guide to creating a Bootable flash drive, there are many alternatives available to this method, of course, such as Rufus and downloadable USB creation tool, this is an extra powerful utility making very easy to Copy entire ISO’s to Drives and making them Bootable. Also very helpful for creating Linux based installs on a bootable USB Flash Drive.