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TannerOakridge's avatar
TannerOakridge
Iron Contributor
Feb 02, 2026

Possible to put multiple iso files on one bootable usb flash drive from windows 11?

Office has a dozen of computers to get os reinstalled or updated from time to time. In the past , I usually prepared a couple of USB flash drives for different operating systems, such as Windows 11, ...
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Sincerer's avatar
Sincerer
Iron Contributor
Feb 03, 2026

Manual Partitioning + GRUB4DOS - Especially for users who are comfortable with Linux. It provides a cost-free, highly customizable way to put multiple ISO files in one bootable USB from Windows 11.

How to put multiple ISO files in one bootable USB from Windows 11:

1. Set up WSL2: Install WSL2 and a Linux distribution.

2. Partition the USB drive:

   Use Linux tools (parted, fdisk) within WSL2 to create partitions.

   One partition can hold ISO files; another can be for boot files.

3. Format the partitions:

   Use mkfs,vfat or mkfs,ext4, depending on your needs.

4. Copy ISO files:

   Mount the USB drive in WSL2.

   Copy ISO files into the designated partition.

5. Install and configure GRUB:

   Install GRUB in the appropriate partition.

   Generate a grub,cfg menu to boot into each ISO, pointing to their locations.

6. Boot from USB:

   Use your system's BIOS/UEFI menu to select and boot from the USB drive.

   The GRUB menu will let you choose which ISO to boot.

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