I tried to make a bootable USB stick to boot Windows in Ubuntu. I used WoeUSB. How can I use it? I chose From a disk Win10_1909_EnglishInternational_x64.iso and file system FAT and target device /dev/sdb. When I clicked Install, the output was:

Installation failed!
Exit code: 256
Error: Source media is currently mounted, unmount the partition then try again
You may now safely detach the target device

So how can I burn Windows 10 iso file to USB stick?


The size of the ISO you want to use is 5,172 MiB.

The maximum possible size for a file on a FAT32 volume is 4 GiB minus 1 byte or 4,294,967,295 (232 − 1) bytes.

It won't fit.

Use NTFS on the USB Flash Drive instead.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.