- #EXTERNAL HARD DRIVE FOR MAC NOT SHOWING UP ON SIERRA HOW TO#
- #EXTERNAL HARD DRIVE FOR MAC NOT SHOWING UP ON SIERRA FULL#
- #EXTERNAL HARD DRIVE FOR MAC NOT SHOWING UP ON SIERRA PRO#
It was also mentioned elsewhere that it may require extra power, so I attached the power adaptor to my MacBook and still, no success. I have read that it could possibly be in sleep mode and putting the MacBook to sleep (whilst connected to the external HDD) and waking it up again should fix the issue. I am not sure what is wrong, the external HDD is identified but does not display for use in the Finder window. It also shows up on the About This Mac > System Report > USB. The external HDD shows up in the Disk Utility application.
My external HDD is a SeaGate Slim SL Media (500GB).
#EXTERNAL HARD DRIVE FOR MAC NOT SHOWING UP ON SIERRA PRO#
I am using a MacBook Pro With Retina (Late 2013), running MacOS Sierra (Version 10.12). I have connected my external Hard Disk Drive (HDD) and it is not displaying under 'Devices' in my Finder window. As of this writing, all remains visible.I have just updated my OS to MacOS Sierra. Puzzled, I decided to use TechTool Pro to do a volume rebuild on my external drive when this process finished the drive was now visible on the desktop. I inserted a flash drive this displayed normally.
#EXTERNAL HARD DRIVE FOR MAC NOT SHOWING UP ON SIERRA FULL#
3 full installer, all 3 drives showed up in disk. The external hard drive remained present in a Finder window, but absent from the desktop. pkg that comes with macOS High Sierra as a stand alone installer and run it. Upon returning and seeing your first message, I re-checked Finder preferences under both tabs. Transferring the files I needed, I disconnected and left for work. When opening a Finder window to transfer files, I noticed that now, the attached external hard drive was displayed in the sidebar, but still was not on the desktop. I then hooked up my laptop in Transfer mode to see if that would display on the desktop. Get a huge set of top utilities for troubleshooting external hard drives not mounting on a Mac. Open an External Drive Not Showing on Mac. Why an external disk drive is not showing up There could be a few reasons why a USB flash drive isn’t making an appearance.
#EXTERNAL HARD DRIVE FOR MAC NOT SHOWING UP ON SIERRA HOW TO#
At this point, I wrote a note to this forum after a quick search showed me that no one else had apparently encountered this problem. How to fix an external disk drive that wont show up on a Mac. I tried the step from Tuesday night, opening TinkerTool and displaying hidden files. Steps to fix the unreadable disk with First Aid: Step 1: When the initial prompt message 'The disk you inserted was not readable by this computer' appears, click Ignore to dismiss it. I unmounted and remounted them, hoping they would appear on either the desktop or in an open Finder window. It can check and repair file system errors on Macintosh HD, external hard drive, USB drive, flash drive, SD card, etc. I opened Disk Utility both devices were mounted. (Incidentally, through all of this, the computer's own hard drive was always displayed.) I went to Finder preferences under both the General tab and the Sidebar tab the appropriate boxes were checked. The external hard drive also was no longer on the desktop. The flash drive did not display on the desktop once again. This error has been seen with external hard drives as well has other media. Then yesterday afternoon, I inserted a flash drive into a USB port to transfer over files before going to work. If you are running macOS 10.13 (High Sierra) or later it is important to. Tuesday night when this first happened, I was only able to get both displayed on the desktop after opening TinkerTool and clicking on the box to display hidden files. I opened Finder preferences, making sure that in both the General tab and the Sidebar tab that the displaying of hard drives box was checked. I opened a Finder window both were missing from the Sidebar. After Sierra was installed, both were missing on the desktop. Before upgrading from Yosemite to Sierra, I had both the external drive and a Flash drive mounted. The disks in question did not display in either location, the desktop or within the sidebar of Finder windows.
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