Hdiutil mount ~/Downloads/Win10_21H1_English_圆4.iso To erase `disk8`:ĭiskutil eraseDisk exFAT 'WINDOWS10' GPT disk8 Proceed to erase and format this disk with a GPT (GUID Partitioning Map) and FAT32 file system. Make sure to replace disk8 with the label of your USB disk.įind the label name of your USB disk. You can also do these steps in the terminal.

You can do this in the Finder if you wish. Next you should mount the downloaded ISO file, and copy all files. Select the disk, right-click, and select 'Erase.' from the menu. The easiest way is to use the 'Disk Utility' program in /Application/Utilities/. Your first step is to erase your USB stick and create a GPT partition map and exFAT file system. Or I was able to create a Universal Disk Format (UDF) disk, which was bootable, but gave an error 'A media driver your computer needs is missing.' later in the installation process. Technically, it might be possible to create a bootable USB stick with Windows, but I did not succeed.Įither I was able to create a GPT partition with exFAT file system, which was not bootable. It is able to do so, because the ISO downloaded by the MediaCreationTool contains many small files, unlike the ISO downloaded directly, which contains one large file that does not fit in the 4 GByte file limit of FAT32. Rufus will output a GPT disk with FAT32 file system.

The steps are straightforward when you download Rufus. I strongly recommend the program Rufus on Windows to create a proper USB stick from an ISO. There are some suggestions to use a USB2 stick and a USB2 port, but I had no issues with a USB3 stick in a USB3 port.

Any other combination will fail, although perhaps UEFI with CSM (Compatibility Support Module) enabled (basically reverting back to BIOS compatibility) might work too. Windows either supports a BIOS bootloader and MBR (master boot record), or UEFI bootloader and GPT. If you use a modern PC with UEFI bootloader, you must use GPT (GUID Partitioning Map) as partitioning scheme for your USB disk. Instead, I recommend to download the ISO file, and then use Rufus to create the USB stick from the ISO file.

It is possible to directly burn to a USB disk from MediaCreationTool, but in my experience it did not always work. If you use MediaCreationTool, be sure to select 'Create installation media for another PC', than 'ISO file'. You may find that your browser redirects you to the other page depending on the operating system of your current system. You can either download the ISO file directly, or with a helper program, called MediaCreationTool. Windows 10 and Windows 11 installers can be downloaded from.

4 Error: 'A media driver your computer needs is missing.'ĭownload a Windows 10 or Windows 11 ISO file.

1 Download a Windows 10 or Windows 11 ISO file.

Win usb installer