How to Mount an ISO File on Windows, Mac, and Linux

ISO files are one of those things that look intimidating until you understand what they actually are. Once that clicks, mounting one takes less than a minute — no extra software required in most cases.

What Is an ISO File, and What Does "Mounting" Mean?

An ISO file (sometimes called a disc image) is a single file that contains an exact, complete copy of a CD, DVD, or Blu-ray disc — including the file system, folder structure, and all the data. The name comes from the ISO 9660 file system standard used on optical discs.

Mounting means telling your operating system to treat that ISO file as if it were a real physical disc inserted into a drive. Your OS creates a virtual drive — it shows up just like a DVD drive in your file explorer — and you can browse, run, or copy files from it exactly as you would from a real disc.

This is different from extracting an ISO, which means unpacking all the files inside it into a folder. Mounting keeps the disc structure intact, which matters for software installers, games, or bootable media that expect a disc environment.

How to Mount an ISO File on Windows 10 and 11

Windows has built-in ISO mounting — no third-party software needed.

Method 1: Double-click Simply double-click the ISO file. Windows will automatically mount it and open the virtual drive in File Explorer. A new drive letter (e.g., D: or E:) will appear in the left panel.

Method 2: Right-click menu Right-click the ISO file and select "Mount" from the context menu. The virtual drive appears instantly in File Explorer under "This PC."

To unmount: Right-click the virtual drive in File Explorer and select "Eject." The virtual drive disappears and the ISO is no longer loaded.

How to Mount an ISO File on macOS

macOS also handles ISO files natively with no extra tools required.

Method 1: Double-click Double-clicking an ISO file in Finder will mount it immediately. It appears as a virtual disc on your desktop and in the Finder sidebar under "Locations."

Method 2: Disk Utility Open Disk Utility (Applications → Utilities → Disk Utility), go to File → Open Disk Image, and select your ISO. This gives you more control, particularly useful if the double-click method doesn't trigger correctly.

To unmount: Right-click the mounted disc on your desktop or in Finder and select "Eject."

One thing worth knowing: macOS is generally better at mounting standard ISO 9660 images. Some disc images in NRG, BIN/CUE, or MDF formats won't mount natively on Mac and may require a tool like Furius ISO Mount or conversion to ISO format first.

How to Mount an ISO File on Linux

Linux users have several reliable options depending on their distribution and comfort level.

Via terminal (works on virtually all distros):