An .ISO or .IMG file (disc image) is a single file which is a copy (clone) of an entire CD or DVD. When you mount iso and img files in Windows 10 or 8.1, it will be added as a seperate new CD/DVD drive in This PC and acts just like a real CD or DVD.
In this tutorial we will show you how to natively mount or unmount ISO and IMG image files in Windows 10 and 8. If you want to do this in windows 7 or Vista, see How To Mount ISO image file in Windows 7.
How to Mount ISO and IMG Files in Windows 10
With the arrival of Windows 8, Microsoft has integrated native support for ISO files into the operating system. You can now mount or burn ISO files without the hassle of downloading a separate application. Mounting an ISO image file is like opening any other file under Windows 8 & 10. All you need to do is right-click, double-click, or select and use the Ribbon to Mount an ISO image. It’s just that simple:
Once you’ve done so, you’ll see the ISO mounted as a new drive in Computer. You can right-click there to unmount when you’re done.