The Disk You Inserted Was Not Readable by This Computer – FIXED

Generally, we all praise the performance of Macs. They operate so smoothly and offer us ultimate efficiency.

However, even Macs are not 100% invincible, and they tend to experience some issues from time to time.

Like with any other system, Macs too can experience issues due to both internal and external influences.

One common example of such an error is ‘the disk you inserted was not readable by this computer‘.

This error occurs when the system cannot accept or read a hard drive connected to it. But the good news is that this issue is totally fixable.

Part 1. Reasons for ‘The Disk You Inserted Was Not Readable by This Computer’ Issue

In fact, there are several reasons behind the issue ‘the disk you inserted was not readable by this computer’.

Before we look into the solutions, it is better to get an idea about the causes. With such knowledge, we know exactly what we do.

Due to a Disk Failure

One of the key reasons behind this error is disk failure. If the respective device you intend to connect to the computer is failing, the OS cannot read it. As a result, it will display the ‘not readable’ error.

Unformatted Disk

If the respective external hard drive you are trying to connect hasn’t been formatted, the above error can emerge. This is another very common reason behind this issue.

WD Software Bug

If the drive is not being readable, that can happen due to WD hard drive as well. In fact, the instance can trigger a result of a malfunction of the 1394 bus.

In addition to that, there can be other rare errors that can trigger a ‘disk not readable’ error. Also, here are all about nvdisplay.container.exe.

Part 2. How to Fix ‘The Disk You Inserted Was Not Readable by This Computer’ Error?

Now that you have a general idea about the causes behind this error. Let’s discuss its fixes as well.

In fact, there are several fixes to this issue. First, let’s list the solutions in brief, and then let’s move to the detailed description.

Now, let’s take a look at a detailed description of each of these solutions.

Fix 1: Fix ‘The Disk You Inserted Was Not Readable by This Computer’ Issue with Disk Utility

Probably, the first solution you should try after noticing the ‘disk not readable’ error is Disk Utility. In fact, Disk Utility is an option that comes with the operating system for free. So, you don’t want to pay extra or download additional tools to use this tool.

In fact, many users were able to fix this issue simply by trying the disk utility. Since it does not cost anything, you can easily consider it as the first solution.

Mentioned below are the steps to consider to use Disk Utility and overcome the issue.

  • When you connect the USB drive to your Mac, you will see an error message. Be sure to ignore it, so it gets dismissed.
  • Now, open Disk Utility. To do that, you can simply choose the Launchpad on the Mac.
  • After launching the app, you will have to select the USB drive, which has the issue. Then, you should click on the button labeled ‘First Aid.’ Just wait for the process to be completed patiently. If the Disk Utility can repair the disk, you will get a notification on the screen.

Fix 2: Initialize the Device That is Unreadable by 4DDiG

For many users, the above option might work. However, if Disk Utility doesn’t fix the respective issue, you will have to try this option. For many users, initializing the disk will work, and they can use the same device without experiencing the error.

However, there is one major drawback associated with this process. This process will erase all the files saved in the faulty drive and make it a fresh one. In that case, it would be a piece of haunting news for those who have valuable information in it.

But the good news is that there is a way to recover the data prior to trying this fix. So, this process comes with two steps; Step 01 to recover data and Step 02 to repair the device.

Step 01: Recover the Data Stored in the Unreadable Device

As a precautionary method, you should recover the data stored in your faulty hard drive. With such an approach, you will not lose any of the information stored in the device.

So, it is suggested that you use a professional data recovery tool i.e., Tenorshare 4DDiG to recover your important data from it before initializing it.

In fact, Tenorshare 4DDiG is an exceptionally powerful and handy tool that comprises various features. This software can easily recover all types of data from external and internal storage devices.

On top of all those impressive features, this product features an exceptionally friendly user interface as well. More importantly, this product can recover data from devices that have various defects, including physical damages.

So, in a nutshell, Tenorshare 4DDiG can be considered the perfect solution to recover data from unreadable devices.

Features of Tenorshare 4DDiG:

Here are the most notable features associated with Tenorshare 4DDiG.

  • It can recover all the types of data from various types of external devices linked to Mac.
  • It is capable of recovering all types of files such as videos, music, images, documents, etc.
  • Tenorshare 4DDiG supports all the file systems such as FAT32, exFAT, NTFS, FAT16, HFS, etc.
  • The data recovery process is 100% safe. This software doesn’t cause any corruption or damage to the existing files.
  • It lets you preview all the recoverable data. As a result, you can restore only the files you actually want.

How to Recover Data Using Tenorshare 4DDiG?

Let’s follow the steps mentioned below to recover data from an external hard drive using Tenorshare 4DDiG. After recovering the data of your faulty hard drive, we can proceed to fix it.

1. Launch 4DDiG and Select the Corrupted External Hard Drive

Download and launch Tenorshare 4DDiG on your PC and then connect your external hard drive to it. And select the external hard drive to start.

Tenorshare 4DDiG
2. Scan Your Disk and Preview The Lost Data

After scanning, you are allowed to preview the file types in detail.

Tenorshare 4DDiG
3. Lost Data Recovery from the Drive

Now, please choose those files you want to recover and click on the “Recover“.

Please do not save the recovered files back to the partition where you lost them, as it may cause files to be overwritten and permanent loss.

Tenorshare 4DDiG

That’s it about recovering the data. You can now proceed to the next step of this process. Your data is completely safe now even if you reinitialize the hard disk to fix errors.

Well, let’s proceed to fix ‘the disk you inserted was not readable by this computer’ error once again.

Step 02: Initialize the Device

You can be 100% sure about the safety of your data because you have already recovered them using Tenorshare 4DDiG. Now, let’s proceed to the process of initializing the device.

  • First of all, launch the tool called ‘Disk Utility‘ on the Mac you are using.
  • Now, in the sidebar (left-hand side), choose the external drive you intend to fix.
  • Click on the tab called ‘Erase‘ and provide the required information.
  • Clicking on ‘Erase‘ will start the initializing. At the completion of the process, you will see that the error is gone.
  • Once the device is connected to the computer, it will work fine. This means, ‘the disk you inserted was not readable by this computer‘ error must be gone.

Fix 3: Check for the Encrypted Drive

If the respective drive is encrypted through BitLocker, you will see many restrictions with it in general. ‘The disk you inserted was not readable by this computer’ is one of those errors.

This is particularly because the BitLocker doesn’t work collaboratively with Mac. The best way to resolve this issue is to turn off BitLocker encryption.

Fix 4: Check for the File System

If the external hard drive comes with an incompatible file system, errors will appear.

You can check the file system through the ‘Info‘ section on ‘Disk Utility.’

That’s how to fix ‘the disk you inserted was not readable by this computer.’ If you have further questions, please let us know.


Ten years of experience in information and computer technology. Passionate about electronic devices, smartphones, computers, and modern technology.