Fix The Disk You Inserted Was Not Readable By This Computer Error

One of the common problems that you might encounter when trying to insert a USB stick to your MacOS computer is the error message “The Disk You Inserted Was Not Readable By This Computer”. This can sometimes be a frustrating experience if you have important files you would like to access from your USB stick or if you would like to save some data into it. In this latest installment of our troubleshooting series we will be showing you how to fix this particular problem.

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How To Fix The Disk You Inserted Was Not Readable By This Computer Error

Before performing any of the recommended troubleshooting steps listed below it’s best to restart your computer first. This action refreshes the operating system and remove any corrupt temporary data that could be causing the problem.

Try plugging a different USB drive

One of the first things that you should do in this case is to eliminate the possibility of a faulty USB drive. Try plugging a different USB drive then check if the issue still occurs. If it doesn’t then the problem is not caused by your MacOS computer but the USB drive itself.

Try repairing the USB drive with disk utility

The Disk Utility tool available in MacOS is effective in fixing corrupted USB drives.

  • When the error appears, click Ignore to dismiss it.
  • Click on the Launchpad and search for “disk”, then click on Disk Utility.
  • Inside Disk Utility, select the disk that is showing the error and click the First Aid button from the ribbon at the top.
  • Wait until the procedure is complete. If you get returned a message saying that the procedure was successful, restart your MacOS computer.

Check if the disk you inserted was not readable by this computer issue still occurs.

Reformat the USB drive

One of the factors that can cause this problem is an unsupported format of the USB drive. To fix this you should try to format the drive to the  FAT32 file system.

  • When the error appears, click Ignore to dismiss it.
  • Click on the Launchpad and search for “disk”, then click on Disk Utility.
  • Inside Disk Utility, select the drive that is showing the error message, then click on Partition from the ribbon bar.  Next, select the number of partitions you want using the Partition drop-down menu (under Volume Scheme), then click on Format (under Volume Information) and click on MS-DOS (FAT).
  • To confirm the process, click Apply and then click on Partition to initiate the process.
  • Wait until the process is finished.

Check if the disk you inserted was not readable by this computer issue still occurs.