Mounting iso : "sorry, there was a problem mounting the file"

Several users report receiving the “Sorry, there was a problem mounting the file” when trying to mount a tệp tin on Windows server 2012 R2, Windows 7, Windows 8.1 or Windows 10. The issue is only reported to occur with the built-in ISO mounter.

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Sorry, there was a problem mounting the file.

What is causing the “Sorry, there was a problem mounting the file” error

We investigated this particular issue by looking at various user reports và the repair strategies that they used to get the issue resolved. Based on what we gathered, there are several common scenarios that will trigger this particular error message:


Internet-downloaded ISO tệp tin is blocked – This is the most common reason why the error message occurs in the first place. If you downloaded the file over the Internet, a Windows security feature might have blocked it.The ISO file is already mounted – Another common reason why this error occurs is if the ISO tệp tin is already mounted by Windows. Keep in mind that with certain procedures, Windows might mount the ISO automatically as soon as the download completes.MicroSD thẻ is interfering with the mounting – A couple of affected users have reported that for them the issue was occurring due to a MicroSD memory card that was inserted.ISO file is not set to Read Only – Keep in mind that the built-in disk imaging utility will have trouble mounting the ISO tệp tin if it doesn’t have a read-only flag. Reports suggest that the initial verifications are specifically looking for that.The disk imaging driver is corrupted – This is known to happen quite often on Windows 7 và Windows 8. Several affected users have managed khổng lồ repair it to lớn a working state using Registry Editor.ISO tệp tin has the sparse attribute set – This scenario is typically reported lớn occur on Windows 10 and Windows server 2012. Several users have managed to resolve the issue by removing the sparse attribute.

If you’re currently struggling khổng lồ resolve the “Sorry, there was a problem mounting the file” error, this article will provide you with a selection of verified troubleshooting steps. Below you have several methods that other users in a similar situation have used lớn resolve or circumvent the issue.

For the best results, follow the methods below in order until you encounter a fix that resolves the problem in your particular scenario. Let’s begin.

Method 1: Verifying if the ISO is already mounted

Before trying anything else, it’s important to lớn ensure that the ISO tệp tin that is triggering the error is not already mounted. Quite a few of users that were struggling with the “Sorry, there was a problem mounting the file” error discovered that the reason it was not working is that the file was already mounted.

Apparently, with certain ISO files Windows will automatically mount the drive at the kết thúc of the procedure. This is known to occur on Windows 8.1. So, with this in mind, xuất hiện File Explorer and see if the ISO tệp tin is already mounted.

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Check if the ISO file is already mounted

If it isn’t, move down to lớn the next method below.

Method 2: Making a copy of the ISO and mounting it

The most popular fix for this particular error message is khổng lồ make a copy of the ISO file và mount it using the same built-in Windows mounter. Several users encountering the same error have reported that the error is no longer occurring with the new ISO copy.

So, in order to circumvent the error message, simply right-click the ISO tệp tin that is giving your troubles & choose Copy. Although there is no official explanation why this method was successful for so many people, Windows users speculate that it’s probably because creating a new copy of the ISO tệp tin get’s rid of the blocked property that was preventing the ISO from being mounted. Essentially, the sparse flag is avoided when creating a copy of the file.

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Copying the ISO file

Next, right-click on an empty space (in a different or the same location) & choose Paste, then wait for the process to lớn finish. Once you have two versions of the same ISO, right-click on the copied version and choose Mount.

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Mounting the copied file

The mounting process should complete without the “Sorry, there was a problem mounting the file” error.

If this method didn’t allow you to resolve the error message, move down to the next method below.

Method 3: Unblocking the ISO file

Another way to lớn go around resolving this issue is to unblock the file using tệp tin Explorer. Several users encountering the same error message have reported that the error was resolved in their case after they unblocked Internet-downloaded files.

Here’s what you need khổng lồ do:

Open tệp tin Explorer and navigate to the location of the ISO file.Select the ISO file and press Alt + Enter to xuất hiện up the Properties menu. You can also right-click on it and choose Properties.
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Right-click and choose Properties or select and press alternative text + EnterIn the Properties window of the ISO file, go to the General tab and check the Unblock box associated with Security và hit Apply khổng lồ confirm the changes.
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Unblocking the ISO fileAttempt to lớn mount the tệp tin again & see if the procedure is successful.

If you’re still seeing the “Sorry, there was a problem mounting the file” error, move down to lớn the next method below.

Method 4: Removing the microSD card

Another verified reason why the “Sorry, there was a problem mounting the file” error occurs is if you have an active microSD thẻ when you’re trying to lớn mount an ISO file. On Windows 7 & Windows 8.1, this is reported lớn interfere with the mounting procedure, producing the error message.

If this scenario is applicable khổng lồ your current situation, simply remove the microSD card from your computer & see if the error message is resolved.

If you’re still encountering the same error message when you try khổng lồ mount the ISO file with the built-in disk imaging utility, move down khổng lồ the next method below.

Method 5: Setting the ISO tệp tin to Read-Only

Some users struggling khổng lồ resolve the same error message have reported that the issue was resolved entirely on Windows 7 and Windows 8.1 after they modified the properties of the ISO file to specify that it’s Read-only.

Apparently, the built-in disk imaging software will specifically look for this tag whenever it needs to mount the file. If the tag is missing, you might encounter the “Sorry, there was a problem mounting the file” error.

Here’s a quick guide on setting the Read-Only tag lớn your ISO file:

Navigate lớn the location of your ISO file, right-click on it & choose Properties. You can also select it & press Alt + Enter to lớn reach the same screen.
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Accessing the Properties screen of the ISO fileIn the Properties screen of the ISO file, go khổng lồ the General tab and make sure that the Read-only checkbox (next to Attributes) is checked. Then, click Apply lớn save the changes.
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Enabling the Read-Only tagMount the image again và see if you’re still facing the same error message. If you are, move down khổng lồ the next method below.

Method 6: Repairing the disk-imaging driver with Registry Editor

Several users encountering the same error message have managed lớn resolve the issue after discovering that the issue was caused by the disk imaging driver (some registry problems related to lớn it). Some affected users were able to resolve the issue by using Registry Editor to repair the integrity of the registry keys.

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Note: This guide has only been confirmed khổng lồ work with Windows 7 and Windows 8.1.