Windows 10 Brings Back Split WIM Support

Microsoft has listened. In my previous¬†Creating Customized Windows 8.1 Media¬†post, I detailed how to deploy a customized Windows 8.1 image utilizing UEFI with two different USB flash drives. The need for two drives stemmed from the fact that Microsoft removed split WIM support, thus resulting in a single file greater than 4096 MB, which isn’t allowed on FAT32 partitions – the requirement for UEFI boot. Utilizing two drives allowed us to UEFI boot off one FAT32 drive, but have the WIM on a second NTFS formatted drive.

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