There are several tools and even inbuilt utilities are presented on Mac that helps you to create a Windows 10 bootable USB from ISO file. It is the file that contains the Windows setup files in a compressed form and splitting can be done easily on Mac as well as on Windows OS. Now, the only possibility left, is the splitting of install.wim file (Windows Imaging Format).

Also, you can't skip the FAT32 format feature because it is quite essential for a drive to install Windows 10. How to Split and Burn Windows 10 ISO on MacĪs you are familiar with the burning issue because FAT32 does not support the file greater than 4GB. How to Split and Burn Windows 10 ISO on Windows PC How to Split and Burn Windows 10 ISO on Mac In this post, we will introduce two different ways to split and burn Windows 10 ISO on a Mac or PC for new Windows 10 ISO downloaded from Microsoft website. You have to split the install.wim file into small pieces and burn it to USB after that. This means the burning process would fail for sure on a Mac because of the file size limitation of FAT32 and Mac can not read NTFS file system by default. Unfortunately, Mac and some old computers can only detect a bootable USB drive formatted to FAT32 during starup in BIOS.įrom above screenshot, you can see install.wim file is bigger than 4GB from unpacked folder of Windows 10 ISO image file. This is one of the biggest pitfalls of FAT32 file system.

The reason is that FAT32 partition is unable to store a single file larger than 4GB. The increasement in file size brings up a new issue when creating bootable USB from Windows 10 ISO, especially on Mac. Now, the size of Windows 10 ISO goes from 3.8 GB (1507) to 4.6 GB (1909). By Petty Madison | Last Updated: Feb.4, 2021Ī lot of new features were added to Windows 10 by Microsoft team in recent years.

How to join split iso files