BIOS setup:

Boot List Option:  Legacy
Secure Boot:       Disabled
Boot Option #1:    USB Storage Device

Current installed OS: Debian

I followed https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/install-windows-from-a-usb-flash-drive to download Windows10, have it formatted to NTFS (FAT32 doesn't support single file larger than 5GB) and then copied Windows10.iso into it. Now my desktop couldn't detect this USB: After pressing F12, there is no such an option as booting from USB. How do I fix it to install Windows 10?


A specialized application is needed to make a bootable USB from an ISO file. Below are listed two such products.

Perhaps the best known such application is UNetbootin.



sudo add-apt-repository ppa:colingille/freshlight
sudo apt-get update
sudo apt-get install winusb

To format a drive and install the ISO on it:

sudo winusb --format <iso path> <device>

To install a Windows ISO on an NTFS partition and edit the MBR of the device:

sudo winusb --install <iso path> <partition>


This utility is more complex to operate.

See installation instructions on the UNetBootin website.

One tutorial for creating a bootable USB can be found in the article
Creating a Windows 10 Bootable USB for a UEFI BIOS within Linux.

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