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

What mounting an ISO file means and why you'd do it

Mounting an ISO file makes your computer treat it like a physical disc — a CD, DVD, or Blu-ray — without needing to burn it to actual media. When you mount an ISO, your operating system assigns it a drive letter (on Windows) or a mount point (on Mac and Linux), and you can open files inside it, run installers, or play games directly from the mounted image.

ISO files are compressed archives of entire discs. They're useful for software distribution, game backups, and operating system installations because they preserve the exact structure of the original disc. Mounting is faster than burning to physical media, uses no blank discs, and lets you access the contents immediately.

Key Takeaways

Windows 10 and later can mount ISO files natively by right-clicking and selecting "Mount" — no additional software needed.
Mac users can double-click an ISO file to mount it automatically, and it appears on the desktop as a disc icon.
Linux requires command-line tools like mount or graphical file managers that support ISO mounting, depending on your distribution.
Once mounted, the ISO behaves like a physical drive and appears in your file manager or Finder, ready to open or run files from it.
Unmounting (ejecting) the ISO removes the virtual drive and frees the file for moving, deleting, or other operations.

Mounting an ISO on Windows 10 and Windows 11

Windows 10 and later versions include built-in ISO mounting. Right-click the ISO file in File Explorer, then select "Mount" from the context menu. Windows assigns the ISO a drive letter — usually the next available letter after your physical drives — and the contents appear in File Explorer as if it were a connected USB drive or external hard drive.

Once mounted, you'll see the virtual drive in the left sidebar of File Explorer under "This PC". Double-click folders inside to browse, run installers, or copy files to your computer. If you need to unmount the ISO, right-click the virtual drive in File Explorer and select "Eject". The drive letter disappears, and the ISO file remains on your computer unchanged.

If you're using Windows 7 or an older version of Windows 10 that doesn't support native mounting, download free software like WinCDEmu, Daemon Tools Lite, or Virtual CloneDrive. These programs add ISO mounting to your right-click menu and work the same way as the built-in feature.

Mounting an ISO on Mac

On Mac, mounting an ISO is automatic. Double-click the ISO file in Finder, and macOS mounts it immediately. The disc appears on your desktop as an icon and in the Finder sidebar under "Devices". The name of the mounted disc matches the name inside the ISO file.

Open the mounted disc by clicking its icon on the desktop or in the sidebar. Browse and open files as you would from any folder. To unmount the ISO, drag the disc icon to the Trash, right-click it and select "Eject", or click the eject icon next to its name in the Finder sidebar. The virtual drive disappears, but the original ISO file stays on your computer.

If double-clicking doesn't work, the ISO may be corrupted or in an unusual format. Try opening it with Archive Utility (built into macOS) by right-clicking the file, selecting "Open With", and choosing Archive Utility. If that fails, third-party tools like Daemon Tools or MountEverything are available from the Mac App Store.

Mounting an ISO on Linux

Linux mounting methods depend on your distribution and desktop environment. Most modern Linux file managers — including Nautilus (GNOME), Dolphin (KDE), and Thunar (Xfce) — can mount ISO files by double-clicking them. The ISO appears as a folder in the file manager, and you can browse its contents immediately.

If your file manager doesn't support ISO mounting, use the command line. Open a terminal and create a mount point (an empty folder where the ISO will appear) with mkdir ~/mnt/iso. Then mount the ISO with sudo mount -o loop /path/to/file.iso ~/mnt/iso, replacing the path with your ISO's location. The contents appear in the ~/mnt/iso folder. To unmount, run sudo umount ~/mnt/iso.

Some distributions include graphical tools for mounting. Ubuntu and Fedora users can right-click an ISO in the file manager and select "Open With" to choose a mounting application. If you prefer a dedicated tool, Furius ISO Mount provides a simple graphical interface for mounting and unmounting ISO files without using the terminal.

What to do after mounting an ISO

Once the ISO is mounted, you can open any file inside it as if it were on your hard drive. For software installers, double-click the setup file (usually named "setup.exe" on Windows or "Install.app" on Mac) and follow the installation wizard. The installer reads files directly from the mounted ISO, so you don't need to extract anything first.

If you want to keep files from the ISO permanently, copy them to a folder on your computer. Select the files you want, copy them (Ctrl+C on Windows and Linux, Cmd+C on Mac), navigate to a folder on your hard drive, and paste them (Ctrl+V or Cmd+V). This creates permanent copies; the original ISO remains unchanged.

For games or applications that run directly from the ISO, leave it mounted while you play or work. The program reads from the virtual drive just as it would from a physical disc. When you're done, unmount the ISO to free up system resources and remove the virtual drive from your file manager.

Troubleshooting common mounting problems

If an ISO won't mount, the file may be corrupted. Check the file size against the source where you downloaded it — if they don't match, the download was incomplete. Re-download the ISO and try mounting again.

On Windows, if mounting fails, make sure you're using Windows 10 or later. Older versions don't have built-in support. If you're on Windows 10 or 11 and mounting still doesn't work, restart your computer and try again. If the problem persists, use a third-party tool like WinCDEmu or Daemon Tools Lite instead.

On Mac, if the ISO doesn't appear on the desktop after double-clicking, try opening Disk Utility (in Applications > Utilities), clicking "File" in the menu bar, selecting "Open Disk Image", and navigating to the ISO file. On Linux, if the command-line mount fails, check that the ISO path is correct and that you have permission to read the file. Run ls -l /path/to/file.iso to verify the file exists and is readable.

If a mounted ISO appears empty or shows only a few files, the ISO may be incomplete or damaged. Try downloading it again from the original source. Some ISO files are also split into multiple parts (like .iso.001, .iso.002) and must be combined before mounting — check the download page for instructions on joining them.

Frequently Asked Questions

Do I need to extract an ISO file before mounting it?

No. Mounting and extracting are different operations. Mounting creates a virtual drive so you can read files directly from the ISO without copying them out. Extracting unpacks all files to a folder on your hard drive, which takes more space. Mount the ISO if you just need to run an installer or access files temporarily; extract it only if you want permanent copies.

Can I edit files inside a mounted ISO?

No. Mounted ISO files are read-only — you can open and copy files from them, but you cannot modify or delete files inside the mounted ISO. If you need to edit files, copy them to your hard drive first, make changes, and save them separately. The original ISO remains unchanged.

What's the difference between mounting and burning an ISO?

Mounting creates a virtual drive in your computer's memory, letting you access the ISO's contents without physical media. Burning writes the ISO to a blank CD, DVD, or Blu-ray disc. Mounting is faster, reusable, and doesn't require blank discs. Burning is useful only if you need a physical disc for a computer without an optical drive or for archival storage.

Can I mount multiple ISO files at the same time?

Yes. Each ISO gets its own drive letter (Windows) or mount point (Mac and Linux), so you can mount as many as your system resources allow. In File Explorer or Finder, you'll see each one as a separate drive. Unmount them individually when you're done with each one.

Will mounting an ISO slow down my computer?

Mounting uses minimal system resources — typically just a small amount of RAM and CPU. You won't notice a performance impact. Unmount the ISO when you're finished to free those resources, though the difference is usually negligible unless you're working on a very old or low-memory computer.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.