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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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vkeegan's avatar
vkeegan
Brass Contributor
Feb 03, 2026

To put multiple ISO files in one bootable USB. Using WSL2 to put multiple ISO files on one bootable USB from Windows 11 is a feasible and flexible method, especially for users comfortable with Linux command-line tools. It allows you to manually set up a multi-boot USB drive by leveraging Linux utilities within WSL2.

Basic steps to put multiple ISO files in one bootable USB:

1. Install WSL2 and a Linux distribution (e.g., Ubuntu) on Windows 11.

2. Prepare your USB drive:

   Use Linux tools to partition the USB drive.

   Create a dedicated partition for storing ISO files.

3. Format the partition:

   Format it with a filesystem like FAT32 or NTFS.

4. Copy ISO files:

   Mount the USB drive within WSL2 and copy your ISO files into the storage partition.

5. Install and configure GRUB:

   Install GRUB bootloader on the USB.

   Create a grub.cfg configuration file that lists all ISO files and defines boot parameters.

6. Boot from the USB:

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

   GRUB will present a menu for selecting the ISO to boot.

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