A hard drive is a device for permanent or long-term storage in computers.

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External SSD not recognized after ejection or reboot

I have an USB external mechanical disk. It works fine, and I can remount it after ejection. Also, it is mounted automatically after a reboot, as it should be. I got an USB external SSD, too. It works ...
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1answer
46 views

Changing from Virtual Hard Drive to Blank External Hard Disk [closed]

I have a blank hard disk (1 TB) that has more space than the virtual disk I am running OS X El Capitan on (89 GB). My OS is running on VMWare Player version 12, being used on Windows 10 single ...
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1answer
1k views

Not enough storage for El Capitan; no way to free up space

I wanted to upgrade my Macbook 2008 from Yosemite to El Capitan. Unfortunately, when I downloaded it and restarted my computer, on the "select the disk on which to install" page the only location, ...
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21 views

Had to reinstall OS X due to corrputed journal: is this a symptom of something more serious?

I have a 13'' Macbook Pro from early 2011 with a Hitachi 320Gb. HD, using OS X 10.9.5. For the last few months, it's gotten slower and slower to become responsive every time it wakes up, and I've also ...
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43 views

Recover folder hierarchy, file names, file metadata from drive?

I'm posting this on AD because I'm using a Mac (Yosemite) to do the job. This is the situation: Friend 1 has a 600GB external HDD (FAT 32 formatted) that he has been using with Windows 7. With ...
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20 views

How to safeguard OS X Drive from accidents

While browsing i found this question Accidentally used dd on my main OSX drive Is there a way to safeguard or block these kinds of things to even run specially on my OS X Drive? Also noticed that ...
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27 views

Time Machine Network Connected to USB Connected Hard Drive

I have a Seagate 2TB hard drive that I connected to my router and have been using for Time Machine backups for the past two years. Recently I have disconnected this hard drive and attached it ...
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1answer
73 views

Disk size keeps shrinking [duplicate]

I am not a pro at Mac / OS X. But I know my way around. I just installed OS X El Capitan. However when I first started up, my harddisk used 30GB with 'other'. With time the capacity just keeps ...
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1answer
370 views

After login mac is stuck on progress bar

I have 15 inc Mac book pro with Mavericks installed. I can successfully on the Mac but I cannot login to my account. Upon press enter I get progress bar and after that I get grey screen then nothing ...
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1answer
106 views

How to format a Seagate HDD to OS X Extended (Journal) with Disk Utility

I have just got a new external hard disk, the Seagate Expansion 2 TB, and I am trying to format it to work on my Mac. I was told that I had to erase the disk and format it to OS X Extended (Journal) ...
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2answers
58 views

Can I use electrical tape instead of the plastic tab when replacing my hard-drive?

I'm replacing the hard-drive on my 2010 Macbook Pro, (This machine just keeps going, and I'm finally upgrading it to a SSD!) and I'm almost done (it's simple enough) but the plastic tab from the ...
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1answer
103 views

How do I backup 2 external hard disks to 1 external hard disk?

I currently own two 2 TB external hard disk and one 5 TB external hard disk. Is it possible to backup the two 2 TB external HDDs to the 5 TB external HDD using my Mac?
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3answers
123 views

New SSD can't be initialized

I have an old Macbook Pro for which I bought a new SSD and replaced the HDD with the SSD. Can't go further, see below. I really don't know what to do. I could return the SSD which, finally, might ...
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0answers
21 views

MacBook Pro running slowly: do occasional input/output errors on a ditto transfer suggest it is the hard drive?

I was pulling files off of my Daughter's Macbook Pro using Target Disk mode and saw ditto reported input/output errors occasionally. I'm talking just about 40 errors total in all of the 250 GB of ...
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50 views

howto encrypt “WD My Passport Pro” online? support.wdc.com with dangerous solution (no security)

I wish to encrypt my WD My Passport Pro drive. I receive error With Google I found An error message occurs when attempting to create an encrypted backup on a My Book Thunderbolt Duo in the Mac ...
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0answers
16 views

There appears to be data corruption when copying data from the hard drive to SDCard

When I copy some files from my hard drive to my SD Card the files become corrupt. But not all of them and not all the time. I get the following error: Unidentified codec VLC could not identify ...
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1answer
147 views

can't rename HD

My son's mac running 10.11 has the hard drive named this curie HD""""""""""" copying and pasting reveals lots of spaces after the sequence of " characters. I can't rename the HD in Finder. Every ...
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2answers
143 views

Seagate is not allowing me to make partition on MS-DOS (FAT) Or ExFAT!

I just bought an external hard drive (Seagate Backup Plus Slim 2 TB) for my Mac (Yosemite installed) for professional photography. I wanted to make partitions for both Mac and Windows, but it only ...
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1answer
35 views

MacBook Pro Hard drive crashed

I have a 2009 MacBook Pro 15". I woke up one day, but my Mac didn't. I was getting nothing but a blank screen so I tried to shut it down a reboot it. Now it won't boot up.. I get the white screen as ...
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1answer
35 views

Infinite Time Machine Backup on Apple Time Capsule

I've got a (old "flat" version) 1TB Apple Time Capsule and I've configured my Macbook Pro (running El Capitan) to backup data on the Time Capsule, through Time Machine. From the top-right information ...
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1answer
45 views

MacBook Pro mid 2012 13.3 HDD cable performance

I am helping a friend to fix her MacBook Pro 13.3 performance problems. It was barely booting, and terribly slow for disk seeks. Then I replaced the HDD. It was perfect with new SSD and El Capitan ...
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2answers
358 views

Updated to 10.11.4 now getting “Disk not ejected properly” every time my Mac mini sleeps

Been running El Capitan since it was officially released. Updated to 10.11.4 a few days ago. I have a WD Elements USB 3.0 drive connected to my Mac mini (directly to the rear ports, not via a hub). ...
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52 views

Blinking “forbidden” and “question mark folder” symbol. SATA cable is the problem?

A couple days ago my macbook pro mid 2012 was running perfectly, with a SSD drive that I,ve installed about a hear ago (I also updated my ram up to 8 gb). The day after that I turned on my computer ...
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129 views

Revert Apple CoreStorage volume back to Apple HFS

I have a computer that is encrypted with Symantec PGPWDE. A scripting error occurred when trying to decrypt the system and remove PGP and convert the disk to CoreStorage to prepare for using file ...
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22 views

iMac partition grid screwed. Please help?

So yeah i guess i screwed up my iMac 5k retina's (late 2014) partition grid big time and i need your help. It all started yesterday when i tried to format my computer. I'm selling it tomorrow, that's ...
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2answers
156 views

I updated to 10.11.4 (15E65) and now I suddenly have 100 more GBs of space free?

What could be the cause of this? The only thing I can think of would be mobile Time Machine backups, but I have no idea.
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90 views

El Capitan keeps creating new mountpoints for external drive

I am new to Mac, I used Linux before and I am experiencing troubles with my external HDD (NTFS formatted). I used osxfuse to mount it as read write (via ntfs-3g) - I used tutorial from this site So,...
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1answer
36 views

Error while unpartitioning hard drive?

I've tried to install Ubuntu (and gave up), but now there's a stuck partition, of 24.22 gigabytes. The pink shows the partition. I want to unpartition it, but when I try to delete it, an error ...
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1answer
79 views

USB external harddrive not being recognised

My WD 2 TB hard drive has suddenly stopped being recognized by my MacBook Pro, running OS X 10.11.3, but it's working on my ThinkPad, running Windows 7 and Linux Mint. The solution I found was to ...
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2answers
136 views

When Mac OS freezes is it ok to hard shutdown?

I have a MacBook Pro Retina, so it has an SSD but no HDD. I use Dr. Cleaner and I've often noticed that when 99% of the app memory is being used, the OS X El Capitan freezes. At this point of time, ...
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1answer
175 views

Cannot reformat external drive with no file system

This whole mess started with trying to encrypt Time Machine backups. I have a 4TB Lacie P9230 external drive which has been working for about a year just fine. The drive has been partitioned into two ...
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Large Library/Containers directory

The directory ~/Library/Containers has size 39GB on my system. This is huge. I guess that the directory contains some files created by running various apps. So the more applications I use, the more is ...
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1answer
104 views

Is the hard disk of a late 2015 27" iMac 5k still replaceable?

I'm getting different information from the web vs. Gravis. I'd like to know if the HDD of a late 2015 iMac 27" model can still be replaced. According to Gravis it's soldered. My idea was to get a ...
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36 views

Mac OSX installed in 2 Hard Disks. Want to Remove applications and OS from one

I have a 13" Macbook Pro (Mid 2012) (El Capitan). Recently, I replaced my Optical Drive with a Samsung 250GB SSD. After some days, when I booted up my Mac, it showed white screen and quick google ...
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42 views

System Crash with El Capitan

My Mac, which stays powered up 24/7 just crashed. I recently installed a second ssd in it, so I'd like to know whether the following is related with the disk. Thanks. Sat Mar 12 01:28:06 2016 *** ...
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2answers
70 views

MacBook Pro not booting from hard drive

I got a MacBook Pro that has a problem booting, or even seeing the hard drive. I have used the recovery console to install OS X onto a USB drive and have booted into that and can't actually see the ...
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1answer
200 views

Disable the disk check when reconnecting an improperly disconnected disk to OS X

If you disconnect a removable drive without ejecting it first, the next time you connect it, Windows or Mac run an fsck check on the disk to ensure data integrity. Windows will ask if you want to ...
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70 views

SSD reporting SMART failure on Wear Leveling Count - but investigation seems like it is within threshold

I have owned this MBP for about 1 year 6 months, and for the past 8-9 months or so it has been telling me the start up disk has critical errors and that i need to replace it. I have ignored these ...
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2answers
121 views

Running a Windows VM from external flash drive

I'm using a MacBook Pro Retina 15" with only 256 GB SSD storage, however, for my new job I need to be able to run Windows on it. I'll need to install Visual Studio and some other tools on the Windows ...
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1answer
215 views

Invalid Node Structure – Broken File system? Data Recovery!

So, the other day I opened up my MBP 2011 (on El Cap) and found it's battery to be drained. Plugged it in and booted it up and got a flashing folder with a question mark thrown in my face. It stood ...
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1answer
1k views

fsck -fy hangs on Checking catalog file + issues booting (MacBook)

Last night my MacBook Pro crashed. This morning I tried turning the computer on, and it had a few issues.. Computer doesn't get past initial boot up loading. Fan activates loudly while starting up. ...
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3answers
207 views

Recover deleted Encrypted OS X Extended volume

I accidentally formatted an external 1TB HD to FAT file system using Disk Utility in Mac OS. The disk used to be HFS+ encrypted. Encryption was done when I created the OS X Extended partition, not ...
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1answer
11 views

I've added a second HD into my Macbook 2011 instead of CD-ROM. Is it safe to encrypt it using Finder?

Years ago I changed my cdrom in my Macbook for a second hard drive, and have been using a SSD as a first drive ever since. This HD is shown in Finder, and, clicking on it with two fingers, there's an ...
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1answer
102 views

How to show Hard Disk icon on Desktop via Terminal?

Is there a command in Terminal that allows you to show the Hard Disk as an icon on your Desktop? I know the manual process of doing it, which is, Finder > Preferences... > General and check "Hard ...
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102 views

Fusion drive suddenly not bootable: “Too few free segments”, made read-only

I've dealt with a lot of disk issues over the years admining lots of different OSs, but this one is new to me... help/ideas appreciated before I give up and restore! Woke up this morning to my iMac (...
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2answers
89 views

Cannot copy from MAC to Pendrive

I attach pen-drive to my Macbook-air. It is detecting and I can also copy from my pen-drive to my Hard disk. But I cannot copy data from Hard disk to pen-drive. I tried with different pen-drives, but ...
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1answer
387 views

How can I fix Error: -69877: Couldn't open device after interrupted formatting process?

This question, possibly the same question, has been asked: Couldn't open device However, my question hopefully demonstrates a more specific scenario as the situation in which caused the error ...
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2answers
334 views

How to fix Mac hard drive partition showing as Fdsik_partition_scheme

My situation seems very similar to how to fix GUID hard drive corrupted to MBR but with enough differences that I haven't been able to put together a confident solution. I have a 3TB Toshiba drive in ...
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25 views

MacBook Pro 17" Late 2011 - Does the Optibay support SATAIII SSD?

I have a Late 2011 MacBook Pro 17" with an SSD in the main drive slot and a HDD in the optibay. Yet I was interested in installing a RAID0. I have checked with system profiler to see that, of course, ...
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61 views

Cannot Repair Macintosh HD, after loading into OSX, it become a [X]

When i restart the computer and loading with the apple logo, wait for few second, and the apple icon become [x] My Mac is OSX EL Capitan (v10.11.3) I used Disk Utility "First Aid" and found that ...