How do I create windows 10 bootable USB on Mac without bootcamp?

Yrturo  Creating a Windows 10 bootable USB on a Mac without using Boot Camp can be done using the Terminal application and a few simple steps. First, you will need to download the Windows 10 ISO file from Microsoft's official website. Ensure you have a USB drive with at least 8GB of capacity, and remember that this process will erase all data on the USB. Connect the USB drive to your Mac and open the Disk Utility application. Select the USB drive from the list of devices on the left, then format it as "MS-DOS (FAT)" with the scheme set to "GUID Partition Map." This will prepare the USB drive for the bootable setup.

After formatting the USB drive, you will want to mount the Windows 10 ISO file that you downloaded. By double-clicking on the ISO file, it should open in Finder. Note down the volume name of the mounted ISO as you'll need it for the Terminal commands. Next, launch Terminal, which can be found in Applications > Utilities. Use the `diskutil list` command to identify the identifier for your USB drive (it will look something like `/dev/diskX`).

Once you have this information, use the following command to copy the contents of the Windows ISO to the USB drive. The command looks similar to "sudo cp -rp /Volumes/WINDOWS_ISO/* /Volumes/YOUR_USB_DRIVE/", where you'll replace "WINDOWS_ISO" and"YOUR_USB_DRIVE" with the correct names of the mounted ISO and your USB drive.

Finally, make the USB a bootable Windows 10 installer on Mac by adding the necessary boot files. In the Terminal, navigate to the USB drive using the cd command. You will need to create a directory called boot and copy the boot files over using commands like mkdir boot and then using another cp command to copy specific files from the ISO. Once this is done, you’ll have a bootable USB drive for Windows 10 installation. Eject your USB stick safely using the "diskutil eject /dev/diskX" command, and you’re ready to use it to install Windows on a compatible PC.