The Disk You Inserted Was Not Readable By This Computer.

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修正済み|挿入したディスクはこのコンピューターで読み取れませんでした - MiniTool

The Disk You Inserted Was Not Readable by This Computer

Have you ever encountered the frustrating message, “The disk you inserted was not readable by this computer”? It can be a perplexing and annoying experience, especially when you urgently need to access important files. In this comprehensive guide, we will delve into the causes and solutions to this common issue, empowering you to resolve it swiftly and effectively.

This error message typically arises when your computer fails to recognize or access the data on a disk, such as a CD, DVD, USB drive, or external hard drive. The underlying reasons for this can vary widely, ranging from physical damage to software incompatibilities.

Causes and Solutions

To troubleshoot this issue, it is essential to consider the possible causes and their corresponding solutions:

1. Physical Damage

Inspect the disk for any visible damage, such as scratches, cracks, or debris. If the disk is damaged, it may be impossible to recover the data. However, if the damage is minor, you may attempt to clean the disk using a soft cloth or a commercial disk repair kit.

2. File System Incompatibility

Different operating systems use different file systems, such as NTFS for Windows and HFS+ for Mac. If the disk was formatted on a different operating system, your computer may not be able to read it. You can resolve this issue by reformatting the disk to a file system compatible with your computer’s operating system.

3. Driver Issues

Outdated or corrupted drivers can prevent your computer from recognizing the disk drive or the disk itself. Update the device drivers for your disk drive and USB controllers from the manufacturer’s website. Alternatively, you can use a driver update utility to automatically scan and update all outdated drivers on your system.

4. Virus or Malware Infection

Viruses and malware can corrupt files and make them inaccessible. Run a thorough virus scan using a reputable antivirus program. If a virus is detected, follow the prompts to remove it and clean the infected files.

5. Insufficient Permissions

Ensure that you have the necessary permissions to access the files on the disk. If the disk is password-protected, enter the correct password. If the disk is shared over a network, make sure that your user account has read and write access.

Tips and Expert Advice

Here are some additional tips and expert advice to help you resolve this issue:

1. Clean Your Disk Drive

Dust and debris can accumulate in your disk drive over time, interfering with its ability to read and write data. Use a compressed air can to gently blow out any dust or debris from the disk drive.

2. Use a Disk Repair Utility

Several software utilities can repair damaged disks and recover lost data. If the disk is physically damaged, a disk repair utility may be able to salvage some or all of the data.

3. Consult a Professional

If you are unable to resolve the issue using the above methods, consider consulting with a professional data recovery service. They have specialized tools and expertise to recover data from damaged or inaccessible disks.


Q: Can I recover data from a disk that is not readable?

A: Yes, it may be possible to recover data from a disk that is not readable using data recovery software or professional data recovery services.

Q: Why does my computer not recognize my USB drive?

A: This could be due to outdated device drivers, file system incompatibility, or physical damage to the USB drive or USB port.

Q: How can I prevent this issue from happening in the future?

A: Regularly clean your disk drive, handle disks carefully to avoid physical damage, keep your operating system and drivers updated, and use a reliable antivirus program.


The error message “The disk you inserted was not readable by this computer” can be frustrating, but it can often be resolved by following the troubleshooting steps outlined in this article. By understanding the potential causes and applying the recommended solutions, you can restore access to your data and prevent future occurrences of this issue.

If you are still experiencing difficulties or have any further questions, do not hesitate to consult with a qualified computer technician or data recovery specialist. Remember, the key to resolving this issue effectively lies in accurate diagnosis and prompt action.

Call to Action: Have you ever encountered this issue? Share your experience and any additional tips that helped you resolve it in the comments section below.

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