To begin, install Ventoy from the repositories and ensure that your USB drive is plugged in before launching the software. Therefore, you'll need to reinstall the Grub bootloader as well. However, reinstalling Windows will also delete your Grub bootloader, and you will lose access to any Linux distributions you have installed alongside Windows.

I downloaded the Windows10 October 2018 Update iso file from the Microsoft website Download Windows 10 Disc Image (ISO File).If you need to reinstall your Windows operating system, whether it's because you no longer want Linux or because Windows is not booting correctly, you can use Ventoy. The downloaded file was named Win10_1809Oct_English_圆4.iso. I tried using the Boot Camp Assistant on my iMac (21.5-inch, Late 2013) to create a USB flash drive Windows 10 installer. I am currently running High Sierra (macOS 10.13.6). The result was the error message shown below. After some research, I determined the error message is probably referring to the sources/install.wim file on the ISO which is 4.4 GB in size.

The file is above the 4 GB limit for files that can be stored on FAT32 formatted volumes. The Boot Camp Assistant formats the flash drive FAT32 and I assume can not copy the sources/install.wim to the flash drive. Is there an alternate way way to create the USB flash drive installer using just the software included with macOS? The USB flash drive needs to include the Windows Support software provided by Apple. If so, what is the procedure?īefore fully answering the question, a better explanation of the problem needs to be made.

Creating a windows 10 boot usb