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[Tutorial] How to create a bootable Windows USB for a Dual OS Tablet using Ultra ISO

(This post was last modified: 07-07-2017, 07:51 PM by hovatek. )

You'll need a bootable USB to flash Windows to a Dual OS (Android + Windows) tablet.


  • Download Ultra ISO @ https://www.ezbsystems.com/ultraiso/ and install it
  • Download the Windows firmware for your Dual OS Tablet (it should contain a WINPE NTFS ISO file, a 'DiskpartFiles' folder, an 'images' folder, a 'Scripts' folder and a 'TEST_TOOL' zip
  • A Flash / USB drive (with sufficient capacity for the Windows files)
  • Windows PC

Steps to create a bootable Windows USB for a Dual OS Tablet using Ultra ISO

  1. Connect the USB device to the PC
  2. Launch Ultra ISO as administrator and activate it

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-1.jpg]

  3. You should now be at the Ultra ISO dashboard

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-2.jpg]

  4. Click the folder icon at the top left corner

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-3.jpg]

  5. In the Window that pops up, navigate to the location of the WINPE NTFS ISO file, highlight it then click Open

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-4.jpg]

  6. The ISO's content should now be loaded

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-5.jpg]

  7. Click Bootable at the top

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-6.jpg]

  8. Click Write Disk Image...

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-7.jpg]

  9. Under Disk Drive, select the USB device, Set Write Method to USB.HDD+ and Set Hide Boot Partition to Hidden then click Write

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-8.jpg]

  10. Click Yes to confirm

    [Image: Hovatek-How-to-create-a-bootable-USB-for...-ISO-9.jpg]

  11. Wait while Ultra ISO writes

    [Image: Hovatek-How-to-create-a-bootable-USB-for...ISO-10.jpg]

  12. Once Write is done, you should see Burn successful, close Ultra ISO (leave the USB device connected)

    [Image: Hovatek-How-to-create-a-bootable-USB-for...ISO-11.jpg]

  13. Navigate to My Computer or This PC

    [Image: Hovatek-How-to-create-a-bootable-USB-for...ISO-12.jpg]

  14. Right-click the USB device and select Format

    [Image: Hovatek-How-to-create-a-bootable-USB-for...ISO-13.jpg]

  15. Under Format, set File system to NTFS (some Windows firmware require FAT32) , Volume label to WINPE , tick Quick Format then click Start . Wait till Format is done then click OK

    [Image: Hovatek-How-to-create-a-bootable-USB-for...ISO-14.jpg]

  16. Copy the Windows files for the Dual OS tablet into the USB device

    [Image: Hovatek-How-to-create-a-bootable-USB-for...ISO-15.jpg]

  17. Your bootable USB is ready
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