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While trying to create a bootable Windows USB from Unetbootin, the process hangs on 51%, whilst trying to copy the 461st file.

I've tried giving it time, but after 3 hours of idle, the issue still persists. What is causing this issue, and how can I fix it?

  • 1
    Try other softwares such as pendrivelinux or linux, if the problem persists then it is a problem with your pendrive. – Raphael Sep 26 '15 at 16:13
3

Assuming you are doing this from a running Ubuntu system (otherwise it would be off-topic):

Open built-in Disks tool – click the menu (right top corner) and select Restore Disk Image.

Choose the Windows 7 iso image, select the USB drive to write it to and start the process.

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  • I cannot find any Windows iso file, that can be cloned alias 'restored' by Disks to a working USB install drive. Please advice how to find or create such an iso file (via the internet, by cloning from an install DVD or some other way). – sudodus Sep 30 '17 at 4:47
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    @sudodus : I downloaded some Windows ISO files from the Microsoft TechNet Evaluation Center to test the new Windows releases and all I can say is that in my case the Disks tool always created the USB installation media properly ... although this is about two years ago (when I answered this question) ... additionally I want to say that Disks creates all other USB installation media for different operating systems perfectly fine - I am using it as default solution for this task all the time. :) – cl-netbox Sep 30 '17 at 17:07
  • Thanks for the reply! I agree, that Disks can clone, 'restore', all [Ubuntu and Ubuntu community flavour iso files as well as other linux distros that provide] hybrid iso files to USB boot drives :-) I understand that it was possible to clone also Windows iso files to working USB installer drives two years ago. After your reply I no longer think that 'clonable' Windows iso files are available now via some channel, that I have not found. It seems Microsoft has changed the boot layout of the Windows iso files during the two year interval since you answered this question. – sudodus Sep 30 '17 at 17:57
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Extraction methods

Cloning does not work now

Cloning does not work now, at least not with the following Windows iso files, that are/were available via the internet during 2017,

en_windows_7_professional_with_sp1_x64_dvd_u_676939.iso
Win8.1_EnglishInternational_x64.iso
Win10_US_x64.iso

I tested, and a cloned USB pendrive boots neither in BIOS mode nor in UEFI mode.

According to @cl-netbox's accepted answer cloning used to work with Windows iso files, I assume old iso files, but I have no such iso files, so I cannot verify that it works.

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