Mounting an ISO to install a game on the Steam Deck

Hi! I’ve been trying to mount an ISO file and for some reason it just did not work.  Here’s what I had to do to get Mount Unmount ISO to work.

  1. Go to Desktop Mode (Click on the Steam button, goto Power and then select Switch to Desktop)
  2. Go to the Discover app and search for “Mount Unmount ISO” and install it.
  3. Now that you have Mount Unmount ISO installed, when you right click on an ISO file, you will see Mount/unmount ISO image.
  4. Right click on the ISO file you’d like to mount, go to Mount/unmount ISO image and select Mount.
    You will now see the ISO file mounted in the Devices.
    IMPORTANT: You must have the ISO file on the internal SSD drive to mount it. It will not work on an external USB drive or the MicroSD card.

Mount/Unmount

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