Use the DISM command to split the WIM file into multiple pieces.Mount the downloaded ISO file and copy the contents to a folder on the local drive.Use various deployment tools to manage the installation over a network.īut if you require the option to run Setup from a bootable drive instead, so you can do a completely clean install, you’ll need to use the DISM command to split the WIM file into pieces that are under the 4 GB FAT32 size limit.Attach the ISO file as a virtual DVD drive in a virtual machine.Mount the ISO as a virtual drive and run Setup from within Windows.To get around this error on Windows 10, you could do any of the following: The file ‘install.wim’ is too large for the destination file system The reason this file too large for the destination file system error occurs is that the Windows Imaging Format (WIM) file in that download, which contains the compressed files that the Windows Setup program uses for installing Windows 10, is a little over 4.5 GB in size, which is well beyond the 4 GB maximum file size for a USB flash drive formatted using the FAT32 file system.ĭrives formatted using the NTFS file system can handle that extra-large file, but modern UEFI-based hardware requires a FAT32 drive to boot for a clean install of Windows. In this post, we will explain why you encounter this error, as well as what you can do to get around the error. If when you download the Windows 10 ISO image and try to copy it to a bootable USB flash drive, but receive the error message The file ‘install.wim’ is too large for the destination file system, or Windows 10 ISO is too big for DVD, The disc image file is too large, then this post is intended to help you.
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