How to Create Multiboot USB to install Ubuntu, Windows 7, 8,10

We have 2 options here: either create a bootable USB stick or a installation DVD.
For convenience and not wanting to waste another DVD, I recommend using the USB Stick method, specially when you have USB 3.0 available (computer and stick).
For those that wish to burn a DVD : Use your favorite disk burning application to burn the downloaded Ubuntu ISO file to DVD.
Creating a bootable USB stick is relatively easy with “Universal USB Installer“.
Download the application and double click it to get it started.

1. Select Ubuntu from the “Select a Linux Distribution” drop down.
2. Click “Browse” and select the downloaded Ubuntu ISO file.
3. Select the correct drive at “Select your USB Flash Drive Letter“.
4. Check “We will format X:\ Drive as Fast32“.
5. Click “Create” to start the process.

Universal USB installer

After clicking “Create” a recap will be shown of the planned actions – please verify them before clicking “Yes“.

Universal USB Installer – Planned Actions

After clicking “Yes”, a few windows will fly by indicating work in progress …

Universal USB Installer – Prepping USB Drive

Note that during this process, the ISO fill will be taken apart (which takes a little time), and your USB stick will be prepped.
Once you see the message “Installation Done, Process is Complete!” (in the black part of the window, in green text), your USB stick is done and ready.
Click “Close” to close Universal USB Installer.