How to Make a USB Drive Bootable in Windows

[stextbox id=”alert”]WARNING:  This method will erase all content on the USB flash device![/stextbox]
Start DiskPart as administrator.

Start DiskPart as Administrator: Start -> type 'diskpart', right-click and choose 'Run as Administrator'.

Disk part should now open and you’ll be at the command prompt.
DiskPart Screen

List disk drives and select the UFD (USB Flash Device) such as your thumbdrive or a USB external HDD.

list disk
select disk 1

DiskPart: list disks and select correct disk

Clean the disk


DiskPart: clean the disk

Create a partition and specify the partition size.  I usually use the entire disk space.

create partition primary size=7839

DiskPart: create partition

Select the partition we just created;  If you created only one partition, the default will be ‘1’.

select partition 1

DiskPart: select partition 1

Set the partition to active


DiskPart: Set partition to active

Format the partition with NTFS filesystem (quick)

format fs=ntfs quick

DiskPart: format selected partition with NTFS (quick)

Assign the newly created partition a drive letter.

DiskPart: Assign partition a drive letter

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