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UNABLE TO UNMOUNT DISK WD MY PASSPORT SOFTWARE
UNABLE TO UNMOUNT DISK WD MY PASSPORT MAC

UNABLE TO UNMOUNT DISK WD MY PASSPORT MAC

Step 1: Reboot your Mac device by holding the 'Option' key.

To use the recovering partition method, follow the steps below: However, this method will not be feasible if the disk and the primary boot partition is at the same location. Recovering the Partition method is used to recover the disk error while formatting a non-booted partitioning or by First Aid. Method 4: Repair with a recovering partition disk number with "/dev/disk1" which is an acceptable disk number. Step 4: After finding the disk, type "sudo diskutil unmountDisk force/dev/diskx" line and replace "/dev/diskx," i.e. For example, the syntax of the disk may be "/dev/diskx" Step 3: Now, search for the disk you want to force unmount. Step 2: Then, type "diskutil list" on the command prompt to get the list of all the disks on Mac. Step 1: Open the 'Terminal Application' from the 'Utilities' menu. To access the terminal application (command prompt), here are the steps to be followed: Command-line can be used to eradicate 'Can't unmount disk' from Mac. Terminal application allows you to control your Mac operations via the command prompt. When the first aid could not unmount the volume for repair, try using the "Use the terminal application" method to unmount the disk volume. You can start performing the tasks which were halted due to the error. You have to click on the "Done" button once the operation is successful as shown in the below image. You need to click on the 'Run' option to move forward in the process.Īfter you 'Run' the First Aid option as shown in the above screen, it will show you the progress and show 'Operation Successful' on the completion. Once you click on 'First Aid' it will show you the second screen as below and ask for the option. Step 4: After selecting the Disk Utility option, go to 'First Aid' and verify the disk. Step 3: Next, in the boot menu, select 'Disk Utility' to access it.

Step 2: While rebooting, hold down the Option key button to select the attached boot drive. Step 1: Insert the USB boot drive to Mac and reboot the system. If you're struggling with the 'Couldn't Unmount Disk' error, the way to fix this is to boot the Mac system from another drive and then run Disk Utility on the disk.Įnsure that the USB boot drive is attached to the device. In case the error still occurs, try repairing the drive using the USB boot drive method. Step 5: Click the unmount button in the toolbar or beside the disk set name.Īfter following these steps, you can erase the Mac hard drive volume. Step 4: In the Disk-Utility app, select the disk that you want to unmount in the sidebar. Step 3: Double-click on the Disk Utility icon. Step 2: Type Disk Utility in the search field. Step 1: Click on the Spotlight icon from the menu bar. To access the disk utility, follow the step below: To unmount the volume, start by accessing the disk utility. The simplest solution to unmount volume for repair is to unmount the disk on disk utility. Method 1: Right Steps to Unmount Volume for Repair on Disk Utility

Method 4: Repair with a recovering partition.

Method 1: Right Steps to Unmount Volume for Repair on Disk Utility.

Let's drill down to the four possible solutions that can be used to fix the 'Couldn't Unmount Disk' error on Mac: There are several ways to fix the disk error. Part 2 - 4 methods to fix "Couldn't Unmount Disk" on mac

UNABLE TO UNMOUNT DISK WD MY PASSPORT SOFTWARE

Other causes can be system related like Error in Bootstrap, Improper Kernel Installation, Hardware or Software crash, and many more. These are a few of the reasons that prompt the 'Couldn't Unmount Disk' error. It can be due to the software or accessing an unauthorized website.

Virus attack: Malicious attacks can harm the data.

Forced or unintentional formatting of data: Unknowingly deleting some system files or data files can result in data loss or faulty disk error.

Interrupting Read/Write operations: In the hurry of working or accessing the data, sudden interruption in the system process can result in data loss or data corruption.

Human error: Deleting or formatting the files or data improperly in between the ongoing operations can cause disk error.

The other reasons for 'Couldn't Unmount Volume' error are: The causes of this error are several, starting with the abrupt shutdown and inconsistent file system. What causes the 'Couldn't Unmount Volume' error?

Usually, the error 'Couldn't Unmount Disk' shows up when you try to format, partition, verify or repair internal disk by Disk Utility on Mac system.

Unmounting a disk means disconnecting a disk drive or optical disk from the computer.

To know about the solutions, first, let's understand about unmounting and disk utility, and the causes of the disk error. Part 1- What does "couldn't unmount disk" mean?

Part 4 - Learn, "How to Use Disk Utility?".

Part 3 - Recover lost files on Mac after all methods fail.

Part 2 - 4 methods to fix "Couldn't Unmount Disk" on Mac.

Part 1 - What does' couldn't unmount disk mean?.