How do I create a bootable USB drive for Ubuntu?

I have downloaded the Ubuntu iso file and I know how to burn it to a DVD.   How do I burn it to a bootable USB drive instead?
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Dr. KlahnPrincipal Software EngineerCommented:
First, you need a USB drive at least as large as the content of the DVD image.

Then use an imaging tool such as Rufus or the legacy HP Drive Imaging tool to write the drive image to the USB drive.  Expect that this will take about an hour.

Rufus is probably the easier of the two to use, but not all distributions will produce bootable USB devices.  If Rufus fails to produce a bootable device, try falling back to the HP Drive Imaging Tool.

At the target machine, set the BIOS to boot from USB, from USB removable devices, and prefer USB devices before hard drives.  Then insert the USB drive, reboot, and (hopefully) off you go.

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Dr. KlahnPrincipal Software EngineerCommented:
Addendum:  If you want to install to a USB flash drive, that can in fact be done -- but it takes special, mystical jiggery-pokery to avoid boot time issues with grub and how it recognizes drives and passes that information to the kernel.  It's not difficult, just tedious, and an already-running linux system is needed to make the necessary changes on the target USB flash drive.
you make bootable Flash Drive with the help of tool Universal-USB-Installer. you can download from below site:
Newly released Acronis True Image 2019

In announcing the release of the 15th Anniversary Edition of Acronis True Image 2019, the company revealed that its artificial intelligence-based anti-ransomware technology – stopped more than 200,000 ransomware attacks on 150,000 customers last year.

Prabhin MPEngineer-TechOPSCommented:
You can USE
Brandon LyonSenior Frontend DeveloperCommented:
Here is an official tutorial on how to make a bootable USB from a Windows computer:
Anwar khanCommented:
You can prefer the RUFUS installer, the most user friendly and easy to use. Rufus is fast

Download the executable and run it – no installation is necessary

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DoctorK12008Author Commented:
Thank you.   That works.
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