One of the great features of later versions of the Windows operating system is that they can mount ISO files without the need for a third-party application. This is quite useful, especially when you’re dealing with large software downloads. 

These days, a lot of files are available for download in the .iso format. It is basically the easier option over burning the files to a disk.

However, several users have reported issues when they tried mounting ISO files. 

If you’re one of the people who encountered such errors and you want to know how to fix ISO issues on Windows 10, then you’ve come to the right place. 

We will show you the steps to take to ensure you don’t encounter errors when mounting your ISO files.

Mounting ISO Files on Windows 10

When you mount an ISO file Windows 10 treats it as a virtual drive. You’ll see it as a DVD ROM on This PC, allowing you to view and use its files and burn them to a physical DVD.

Microsoft made sure mounting ISO files on Windows 10 wouldn’t be a technical process, although there are advanced methods. Now, let’s show you the basic and geeky techniques of mounting ISO files.

Using the Windows Explorer

There are different ways to mount the file within Windows’native File Explorer. You can do the following after opening the File Explorer window and navigating to the ISO file:

  • Right-click the file and select Mount.

Mount an ISO file

  • Click the file once, go to the ribbon menu of the File Explorer window, select Disc Image Tools under Manage, and then click Mount.

Disc Image Tools Windows 10

  • Double-click the ISO file.

Note that the last method may not work if an ISO mounting software application is currently the default program for opening ISO files.

Using PowerShell

You can also enter the Windows PowerShell mount ISO command line to create the virtual drive. Follow these steps:

  • Right-click your Start button, or press Win+X, and click Windows PowerShell (Admin) in the Power User menu.

Windows PowerShell Admin

  • Click Yes in the User Account Control prompt.
  • Now, type this command and hit the Enter key (follow explanations):

Mount-DiskImage -ImagePath “ISO/FILE/LOCATION”

Replace “ISO/FILE/LOCATION” with the path to the file you want to mount. So, the command should look like this when we try to mount a God of War ISO file:

Mount-DiskImage -ImagePath “D:\GodofWar.iso”

  • After hitting Enter, the command may take a few seconds to a minute to execute, so do not panic.

Mount Disk Image Windows 10

  • Once you use the command to successfully mount the ISO file Windows 10 will display the new virtual DVD Drive in This PC.

Mounted ISO file on Windows PC

That’s how to mount your ISO file!

If you want to unmount it, go to This PC, right-click the virtual DVD Drive, and select Eject from the context menu.

Troubleshooting Common “Mount ISO Windows 10” Errors

If you’re encountering any problem, such as “Couldn’t mount the file,” the steps that follow will help you get rid of it.

Method 1: Updating Your Windows And Device Drivers

Updating your operating system and your computer’s drivers is one of the best ways to ensure you can mount ISO files without problems.

Windows 10 updates are designed to enhance your user experience, improve your system’s functions, and fix bugs that occur from time to time. The issue here might be related to a glitch that an update might fix.

For example, this Windows user posted a message on a Microsoft Forums thread narrating how they couldn’t mount ISO files after a major Windows 10 update (which they performed after mounting the installation ISO).

As it turned out, installing another update got rid of the problem for good.

Follow these steps to update your OS and drivers using the Windows Update Client:

  • Punch the Windows key to open the Start menu.
  • Type “update” and click “Check for Updates.”

Check for updates

  • The Windows Update Client will now open and begin to check for available updates.
  • Allow it to download the updates it finds and restart your PC when required.
  • Next, go to View all Optional Updates, expand the Driver Updates section, and install available driver updates.

Windows Update

You can automate the driver-updating process using Auslogics Driver Updater. We always recommend this method for many good reasons. 

For instance, if you manually update your drivers, you’d have to spend a significant amount of time searching for compatible and updated versions on the manufacturer’s website. 

On the other hand, when you use Auslogics Driver Updater, you only have to click a button, and you can update all your drivers to their latest manufacturer-recommended versions. 

You do not have to worry about installing incorrect drivers because this reliable tool can automatically recognize your system! Once the process is complete, you can now mount ISO files from a DVD or CD. 

What’s more, you will notice a significant improvement in your computer’s speed and performance.

Method 2: Make Windows Explorer the Default Program for Opening ISO Files in Windows 10

As we’ve mentioned, Windows 10 allows users to open ISO or Image (IMG) files without the help of a third-party application.

In some cases, a bug from a recent update can affect file association features on a Windows operating system. It is also possible that your system is having trouble recognizing ISO files.

Consequently, it does not automatically set a default application for mounting or accessing the files. You can make sure Windows’ File Explorer is the default application for mounting ISO files before you start. Follow these steps:

  • Go to the ISO file you want to open.
  • Right-click the file, then select Open With.
  • Another menu will show up. Select Windows Explorer.

Windows Explorer

This process allows you to mount the file by double-clicking it if all goes well. 

Method 3: Unmounting All Drives

Please unmount any ISO you may have mounted on a virtual drive. Because of the auto-replace function, you might be prevented from mounting the new ISO file over the existing one.

Follow the instructions below:

  • On your keyboard, press Windows Key+E. This should open File Explorer.
  • Go to the left bar menu and click This PC.
  • Right-click a virtual drive, then click Eject. Do this for every virtual drive available on your computer.

Eject ISO file

  • Restart your computer.
  • Try mounting the ISO file on any available slot.

Control Panel on Windows 10

  • Click Uninstall a Program under Programs after the Control Panel window opens.

Uninstall a program on Windows 10


  • Now, search for the unwanted ISO application, click it, and select Uninstall at the top of the window.
  • Follow the subsequent prompts to complete removing the program.

If you’ve already uninstalled the third-party virtual drive program and the error persists, it is possible that its entries are still in the registry. 

You can resolve this problem by cleaning the registry and removing entries related to the ISO file association. 

You can manually roam through the Registry Editor, but we strongly advise that you use a reliable tool like Auslogics Registry Cleaner instead.

Auslogics Registry Cleaner

It is worth noting that the registry is a sensitive database. Just misplacing a comma can prevent you from properly booting your computer! So, before you decide to clean your registry, you have to be certain that you can perform the changes correctly. Here are the steps you should follow:

  • Click the Search icon.
  • Type “regedit.”
  • Select Run as Administrator on the right side.

Run Registry Editor as Administrator

  • Navigate to the following path: Computer\HKEY_CLASSES_ROOT\.iso

Registry Editor ISO

  • Create a backup of your registry.
  • Check if a third-party ISO tool is still associated with your ISO extension. If so, right-click the Default entry and click Modify.

Modify ISO file

  • Replace the entry under Value Data with “Windows.IsoFile” (no quotes), then click OK.

Windows ISO file


  • Restart your computer and check if this resolves the issue.

Learning how to fix ISO issues on Windows 10 is easier when you opt to use Auslogics Registry Cleaner

This tool automatically scans corrupted, duplicate, and outdated registry entries. With a click of a button, you can remove old ISO-related entries and resolve the issue. The best part is this tool is absolutely free!

Method 5: Change the Drive Letter of a Removable or Virtual Drive

How your computer assigns drive letters may be the problem. If you check and see that the ISO shows up in This PC, but you still see the error, take a closer look at its drive letter.

The error tends to occur when its driver letter serially follows that of another drive. Let’s say you have five drives: C, D, E, F, G, and the ISO is H. This arrangement could be the likely culprit.

Change the Drive Letter of a Removable or Virtual Drive

You can resolve the matter by breaking up the serial pattern. To do that, change the drive letter of a virtual or removable media. Follow these steps:

  • Connect the removable media, such as a USB flash drive or external hard drive, to your computer (if it isn’t already connected).
  • Right-click the Start button (or press Win+X) and select Disk Management from the Power User menu.

Disk Management Windows 10

  • After the Disk Management window opens, you will see a list of every drive connected to your PC, including the removable media.

Check Disk status Windows 10

  • Right-click on the partition or volume of the removable media whose drive letter you want to change.
  • Click Change Drive Letter and Paths when the context menu opens.

Disk Management Change Drive Letter and Paths

  • Click Change in the Next dialog window.

Change Driver Letter Windows 10

  • Choose a new, available drive letter from the drop-down list. 

Disk Management Assign Drive Letter

Ensure it’s a drive letter that allows Windows to assign a preceding letter to the removable drive. 

For example, if the drive’s current letter is F, assign G or H to it so that Windows will automatically assign F to the ISO.

  • Click OK to confirm the change.
  • A dialog box might warn that programs that rely on drive letters might not work correctly. Click Yes if you’re sure.

Now, mount the ISO again and check if reassigning drive letters did the trick.

Method 6: Investigate Third-party Software

The ISO mounting problem may be occurring due to software conflicts. You can troubleshoot this particular issue by taking some steps.

Try mounting the file in Safe Mode: Since Safe Mode runs Windows without most third-party applications, you can try running and mounting the ISO in that environment. Follow these steps to Start your PC I. Safe Mode:

  • Press Win+R to launch the Run dialog box.
  • After Run appears, type “msconfig” into the text box and hit the Enter key.

  • That action will open the System Configuration dialog window.
  • Go to the Boot tab.
  • Head to the Boot Options area and check the box next to Safe Boot.
  • Select Minimal and click OK.

System Configuration Windows 10

  • Restart your computer.
  • Try mounting the ISO file after your computer boots in Safe Mode.

Move on to the next method if the error still appears. On the other hand, if you can now mount the ISO file successfully, try looking at the software applications you recently installed. 

Method 7: Use System Restore

If you are suddenly seeing the error appear after being able to mount such files without any hitch in the past, restoring your OS to a previous state may be the right fix.

Thankfully, Windows often sets restore points automatically when your system goes through significant changes, such as a major driver or Windows update.

Follow these steps to restore your PC:

  • Go to the Start menu and type “restore point.”
  • Click Create a Restore Point in the results.

Create a restore point

  • After the System Properties window opens, click System Restore.

Windows PC System Properties

  • Select Next in the System Restore window.

Restore System File and Settings

  • Select a System Restore point and click Next.

Automatic Restore Point

  • Click Finish.

Confirm your restore point


Do you have other suggestions for mounting ISO files?

We’re looking forward to hearing your ideas in the comments below!


What Is the Meaning of ISO in a Computer?

The .ISO extension follows the ISO 9660 standardized naming format used for CD-ROM media. The format was the natural choice since ISO image files typically contain everything in a traditional DVD or CD.

What Exactly Is an ISO File in Computers?

An ISO image in computers is a file that contains an exact copy of the data and structure found on optical discs, such as a CDs, DVD, and Blu-ray Discs. So, you can call it a CD or DVD, but without the physical disc.

How Can I Open an ISO File in Windows 10?

You can open an ISO file on Windows 10 by right-clicking the file and selecting Mount in the context menu.

How Do I Install Software from an ISO File on Windows 10?

Open the ISO file (right-click and click Mount), then locate and run the program’s installation package.

What Is the Meaning of “Mounting an ISO File?”

Mounting an ISO file is Windows’ process of recognizing the data structure of the file and reading its content. Since the file is a virtual optical drive, Windows has to treat it as such.

How Can I Run an ISO File on My Computer?

Running an ISO file is the same as opening and “Mounting” it. All you have to do is double-click the file or right-click it and select Mount.