Mac will not detect hard drive

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If your operating system is badly corrupted, reinstalling it may be the only option. If Disk Utility advises you of a failing hard disk, you should immediately back up as much data as possible and install a new hard drive if possible. Otherwise, you can hold down the "C" key while the computer starts and select the option to "Reinstall OS X" and follow the prompts to reinstall your operating system. The process of reinstalling your operating system deletes everything, so make sure you back up as much data as you can. It may vary slightly or significantly with other versions or products.

As a professional writer, she has written for Education.

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Martin contributed English translations for a collection of Japanese poems by Misuzu Kaneko. She has worked as an educator in Japan, and she runs a private voice studio out of her home. She writes about education, music and travel. Search Glass x. Power Issues When you press the power button on your Mac, check to make sure you don't have a power issue.

Startup Disk and Repairs Sometimes your Mac may lose track of the location of the startup disk.

External Drive Troubleshooting – Mac | WD Support

Reinstall Mac OS If your operating system is badly corrupted, reinstalling it may be the only option. Video of the Day. Brought to you by Techwalla. References Apple Support: Option, Command, P, and R. It should look as though your Mac has started again; if it has, release the keys when you hear the second startup chime. Hopefully, the hard drive has shown up now. Disk Utility is within System Preferences, or you can find it using Spotlight. If it is visible, then click the option to Mount, which should make it visible on the desktop and in the External Drives option in the Finder menu.

But there might still be a way you can recover the data on the external drive. In the Sidebar tab you can choose which folders and devices will be shown in the left-hand column of the Finder window.

If your drive is having problems, you can try to fix them yourself with First Aid and therefore get access to your files. First Aid tool will check the disk for errors and then attempt a repair as needed. It helps to verify and repair a range of issues related to startup HD and external drive problems. If you are able to fix the hard drive or SSD in your Mac or a external drive using Disk Utility you will hopefully be able to recover your files.

If First Aid successful in fixing errors, the external drive should be available to mount. If the utility unable to repair issues, your drive truly broken or formatted using a file system that the Mac cannot read - in this way we suggest you follow the next steps to recover data from a damaged disk drive.

Thankfully, there is an app for that.

How to access an external drive that’s not recognized on a Mac

OS Installs didn't have a disk to install. I was really scratching my head; my google searches led me to finding it was not an uncommon issue on older computers where it was the result of a bad cable from the hard drive to the mother board, but this model's HD is directly soldered to the MB I believe. Based on this apple resource: Startup key combinations for Mac - Apple Support , I tinkered around and briefly got my internal hard drive detected.

Here's a summary of what I did:.

The next time I was in disk utility, I could finally see the internal hard drive. I verified it, ran repair, and choose it as the Startup Disk. Rebooted, and it was running good. For about another 30 minutes, came bake to a frozen screen. Force restarted and was having the same issues. Another 20 tries of doing everything above, in no particular order, with and without anything connected bluetooth, USB C, thumb drive with installer, etc. This time I checked for the software updates to see if they had been corrupted but it indicated that they had been installed.

No more updates to install. The internal hard drive was being detected so I decided I was going to do a fresh OS install. Rebooted into Startup Manager with my Thumb Drive - erased the internal drive that was still detected - and was able to successfully run a fresh install.

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It finally booted but unfortunately to the recovery installer window. I restarted, and the flashing question mark folder came back. I ended up returning the computer at that point to Big Blue, but am going to try my luck with the same model in space grey.

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Hope it works better! MacBook, macOS Sierra Posted on Apr 23, 8: Jan 2, 6: Page content loaded. Apr 23, 8: In the future please use this site only to ask technical questions about an Apple product. See Writing an effective Apple Support Communities question. Although your experience may have been troubling to you, the ASC is not the proper venue for it. You have no problem to post, therefore, you have no need to use the forums. Jan 12,