How do I use Unetbootin to make a bootable Windows USB installer?

Solution 1:

That worked for me.

• Format your USB as FAT32 in GParted
• Open UNetbootin and get it as far as the stage where it brings up the USB partition to install to e.g. /dev/sdb1 — Don't install the ISO, though
• Leaving UNetbootin open as is, switch to GParted
• Format the USB in GParted as NTFS
• If GParted doesn't automatically add the "boot" flag, add it yourself
• Exit GParted, mount USB by running sudo mount /dev/sdb1 /mnt (don't forget to replace sdb1 with your one)
• Now, go back to UNetbootin, which you've left open in the meantime, and click OK

Doing so, UNetbootin will think you are using a FAT32 partition and will let you use NTFS format.

Solution 2:

If Windows is what you're trying to install, then Windows 7 bootable USB DVD download tool from Microsoft (Also works on XP) allows you to create a bootable version of windows 7 OS for installing windows through USB drive. To download this utility click Here.

Note: You need to run this on a windows machine.

For more information see Windows 7 USB Creator

Now to create a bootable Windows 7 USB Drive while using Ubuntu, then you need to make sure you have a Windows 7 .ISO file (you can create it from the DVD) and a 4GB USB flash drive (or larger).

Install Gparted and format the USB drive to NTFS. In Ubuntu, use the following command to install Gparted:¹

sudo apt-get install gparted

To be able to format a drive to NTFS, you'll also need ntfs-3g - install it using the following command:¹

sudo apt-get install ntfs-3g

^{1Source:Create A Bootable Windows 7 USB Drive From Ubuntu}

Updated to add the way to create it using Ubuntu from the Source.

Install Gparted and format the USB drive to NTFS. to install Gparted:

sudo apt install gparted

To format the usb flash drive drive NTFS, install ntfs-3gt to install just type the command below in terminal

sudo apt install ntfs-3g

download TESTED Unetbootin version 494 from Here

Once downloaded navigate to the folder where the file was downloaded, most likley the Downloads folder, and open terminal there. Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:

sudo chmod +x ./unetbootin-linux
sudo ./unetbootin-linux-494

or

sudo add-apt-repository ppa:gezakovacs/ppa
sudo apt-get update
sudo apt install unetbootin

Once installed. open UNetbootin, select "Diskimage" and then browse for your Windows 7 ISO file.