I usually used to back-up on my Mac Book Pro, and plugged it in into the new iMac to download some files. I’ve recently used My Passport HD on a new iMac and it seems to be corrupted. My Passport and iMac OS X.For example, you can run a disk check when your apps quit simultaneously, an external drive is not working properly, or your Mac won’t startup. Once the login window appears.The Disk Utility on Mac is a very useful system tool for fixing specific disk problems. It solved it for my WD SSD Passport external drives. And, its release coincides with Apples newly-launched MacBook. Max OS X Can’t repair the diskyou can still.
Os X Can’T Repair The Disk “My Passport . Download Some Files![]() What Causes the “Couldn’t Unmount Disk” Error in Disk Utility for Mac?When your Mac is getting the “Couldn’t Unmount Disk” error when using the Disk Utility, it is possible that the boot drive cannot be modified because it is being used by some process or an application. Disk Utility stopped verifying (letter of the hard disk)Once this pops up, the current process gets halted and could no longer proceed, affecting any troubleshooting process or disk repair you might be doing. About Outbyte, uninstall instructions, EULA, Privacy Policy. What makes this error frustrating is that there is usually very little to no additional information provided by the error message, making it more challenging to resolve the problem, And based on the error message, it is even harder to determine what the problem is all about.Here are some variations of the error message that Mac users encounter, depending on the process being executed when the error happened:Special offer. Close all applications and files before attempting the repair. But before you do so, here are some of the basic troubleshooting you should take care of first: How to Fix the “Couldn’t Unmount Disk” Error on MacIf your Mac is getting the “Couldn’t Unmount Disk” error, don’t worry because there are several ways to handle this problem. Whatever the reason is, resolving this “Couldn’t Unmount Disk” error should be your priority because it might lead to further disk damage or other hard drive issues. This is because the malware might be making changes to your hard drive without you knowing it.Other factors you should look into include corrupted system files, bad hard drive sectors, or insufficient permissions. When a malicious software is running in the background and wreaking havoc on your Mac, you might get the “Couldn’t Unmount Disk” error when you try to do something with your hard drive. ![]() Next, click on Disk Utility from the boot menu. While booting up, hold down the Option key to boot using the Recovery Partition. If this is the case, you can try resolving the error using Recovery Partition. Once your disk has been verified, you can then proceed with the task you were trying to perform when the error occurred.If the “Couldn’t Unmount Disk” error message appears when doing First Aid on your disk or formatting a non-boot disk, the first solution will not work. Click First Aid at the top menu to verify the disk. While restarting, hold down the Option key button and choose the attached boot drive. ![]() SummaryThe Disk Utility on macOS is a useful tool for fixing any disk-related issues or performing tasks that involve the hard drive. Just make sure to choose a reliable app that can help you perform these tasks without any error. These utilities can also be used to format, partition, erase, or modify your disk. There are a lot of repair utilities to help you deal with this “Couldn’t Unmount Disk” error. Replace /dev/diskx with the disk number of the drive you want to unmount (for example, dev/disk1).If you don’t want to go through the trouble of booting using the USB boot drive or typing in commands in the Terminal, you can use a third-party tool instead. How to run psp emulator on macWhen this happens, simply follow the solutions listed above and you’ll be good to go. Flaws, such as the “Couldn’t Unmount Disk” error, can happen from time to time.
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