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

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Can not boot anyway to restore files

I can not get my Mac Book Pro to boot. It will only boot in Recovery mode. I am assuming I need to reinstall the OS but anyway to save files? What if I connect the hard drive to an enclosure and ...
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17 views

Cannot Enable Jounraling (OSX Lion 10.7.5)

so I am trying to enable journaling on my main disk. I booted up from a thumb drive with OSX installed on it and opened disk utility, and the button enable journaling is greyed out and unclickable. It ...
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2answers
26k views

Hard drive died, how do I get the OS X on new hard drive? [duplicate]

I have a huge problem. My hard disk seems to be dead. I did a lot of things but I guess it's really gone. The thing is that I don't have CDs o DVDs of the OS X Lion (it's a macbook pro A1278 bought in ...
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1answer
11 views

“Startup disk” in “About this Mac”

I noticed that on when I go into "About this Mac" on my iMac I see a parameter named "Startup disk" while on my MacBook I do not... Is this because I have multiple disks in my iMac and only one in the ...
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1answer
2k views

How to Fix Disk Utility Getting Stuck on “Verifying storage system”

Okay, had a brief power outage today that shut down my computer and external drives, so I figured I should run a quick disk check just to be safe. However, when I run try to verify with Disk Utility, ...
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2answers
5k views

Deleting a hard drive protected by password with Mac OS X Yosemite

I recently changed my hard drive for a SSD device. The removed storage device can be used as an external drive, via USB. I want to delete everything on this HD, but it is asking me for a password when ...
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31 views

After update OS X EI Capitan, external hard disk format changed

I always use the same external hard disk on my Mac formatted as OS X Extended (Journaled). After upgrading my OS, it's recognized as NTFS volume now. What should I do?
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1answer
2k views

Looking for OpenSource Cleaning / cache deleting application for Mac

In the times of small SSD harddisks, I was looking for an open source software to delete caches and other space wasters like logs, unused application remains and such on Mac OSX, and all over the web ...
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2answers
2k views

External drives won't mount on restart

One of my staff just got a new Mac mini with the USB 3 ports and Mavericks. It has 2 Seagate GoFlex 3TB hard drives connected: 1 for Time Machine, the other for Dropbox files. When the computer is ...
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1answer
2k views

Time Machine Restore Button Greyed Out For External Hard Drive

I recently brought my computer (Mid 2010 Macbook pro) into the Apple Store because it had been crashing recently. The first time I brought it in, they did a clean wipe of the hard drive and restored ...
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60 views

Sometimes Mac doesn't recognise my external hard drive

I have a Western Digital My Passport Ultra 1 TB external hard drive that is formatted FAT32 and a 16 GB Silicon Power USB thumb drive and both of them uses USB3 but my MacBook Pro sometimes doesn't ...
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2answers
36 views

Hard Drive not showing up in Disk Utility

So I arrived home from school today and wanted to use my iMac, but somehow it wouldn't react. I pressed the power button until it shut down (or crashed...) and rebooted it. After rebooting everything ...
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1answer
32 views

Why does my external harddrive not work when attached to this USB3 Hub?

I own a Macbook Pro 15" Mid 2015 which supports USB 3.0 and bought a Western Digital 2TB external USB3 harddrive and a USB 3.0 Hub from Anker with external power supply. When I plug-in the harddrive ...
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17 views

External Hard Drive Not Showing Up after dragging it to Terminal?

So from the left side of the Finder I accidentally dragged my external hard drive and now it doesn't appear there. I would like to see it there, I know it's reading it because I did an ls /Volumes and ...
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2answers
7k views

How do I add icons to my menu bar?

I would like to know how I could add a USB eject button or battery power indicator to my menu bar on Mac OS X. I remember going into my Macintosh hard drive but I can't remember which folder to find ...
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2answers
8k views

WD MyBook appears as read-only

My WD MyBook Essential with USB 2.0 appears with read-only permissions. I set the drive up on my old Vista machine, and when Vista began crashing, I switched to Ubuntu. I still have the Ubuntu machine,...
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1answer
25 views

Can't log into my MacPro user account

I have an older Mac Pro in 10.11. After a minor update, I can no longer log into my main user account (which is a standard account) with all my files; the rotator goes indefinitely. I can log into any ...
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2answers
36 views

Swapping HDD RAID 1 with SSD in Mac Mini

I have a Mid 2011 Mac mini with 2x 500G HDD configured as RAID 1. Recently one of the HDD died. I planned to replace the dead HDD with a 500G SSD, and let the RAID 1 rebuild Is this a viable ...
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1answer
22 views

Should I have my Mac on until “external” hard drive encryption process is done?

I have a MBP 2012 and replaced the internal hard drive with an SSD and the SuperDrive with a 1TB HDD. I'm encrypting my 1TB HDD. Should I leave my Mac on until it's done? Does OS X pause the ...
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49 views

“Operation can't be completed because item with name already exists” error with Paragon NTFS

I reinstalled Mac OS X El Capitan 10.11.5 on my 2013 MacBook Pro, today, and I've been having an issue copying files from my NTFS formatted external drive using Paragon NTFS. This issue was not ...
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1answer
35k views

How to recover my harddrive if I can't see it in the disk utility

I have a 2007 aluminium iMac which I upgraded months ago to Mavericks. Today it locked up and I held the power button to shut it down and cannot get it to start again. I get the flashing folder ? icon ...
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1answer
29 views

Time Machine External Hard Drive stopped being recognized

So I got a 2015 rMBP last year and also got a WD MyPassport External Hard drive with it for Time Machine backups. It ran perfectly a few times a week until yesterday when I plugged it into my Mac. It ...
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5answers
57k views

I can't write to my flash drive, and it is already in the MS-DOS (FAT) Format. Why?

This is my first question on this website. I am using a Mac Air, and I have a flash drive in which I can read from. I am able to copy files from this onto my Desktop, or anywhere on my computer for ...
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1answer
46 views

Screwed up my 1TB HD iMac27 - I am running OSX 10.11.5 need to rebuild it in Terminal

** Not sure what I did but I need to regain the space on my 1TB HD. I have made a full back up and need to know the step by step commands in TERMINAL to do this. As you can see I have access to only ...
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1answer
43 views

Bootcamp - Lost 200GB as Bootcamp froze on “while partitioned” for 5~ hours

I was installing Windows 10 via Bootcamp on my iMac (27-inch, Late 2013) running OS X El Capitan - Version 10.11.4. What happen was yesterday Bootcamp froze on "while partitioned" for around 5 hours....
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2k views

Does Mac have something similar to a Linux loop device?

I am trying to work with some cd and hard drive images that I will run inside of QEMU. On Linux, I mount the images using the losetup command, but I notice Mac does not have this. Is there something ...
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1answer
4k views

Fixing a broken hard drive's partition map

I have a drive that is corrupted. Disk utility could not repair the disk, so I attempted to follow some tutorials and repair the partitions using pdisk and testdisk, but things have gone south. Now ...
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1answer
8k views

iMac Startup I/O Error Despite Successful Disk Repair

My Early 2008 iMac with OSX 10.8.5 no longer boots beyond grey screen with spinning gear. Verbose mode shows a load of I/O errors. Disk Verify/Repair run via recovery partition completes successfully, ...
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1answer
48 views

How to repair HFS+ partition?

So somehow my 2013 Retina MacBook Pro's internal SSD went and got its partition map messed up. I was using it, put it to sleep, and when I woke it back up about an hour later I was presented with a ...
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1answer
41 views

Hard Disk problems, unsure of how to proceed

A couple of days ago, I closed the lid on my 2012 MBP running El Capitan with Samsung Pro 830; it had nearly no power left. Power ran out while I was closing the lid, I suspect, so I plugged it in, ...
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705 views

Mac Application to defrag my Mac drive

I work on media files as per my profession. I find my Mac (Mac Lion) going slower day by day. I think it will be beneficial to defrag the drive but didn't find any Apple tool for it. I want a an ...
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2answers
1k views

Repair MBR (Windows 10) from OS X

I've messed up my system yesterday. On my iMac I have installed OS X and Windows 10 using Boot Camp Assistant. The Windows MBR is damaged and I can't start it anymore. I get a black screen with the ...
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2answers
141 views

Why won't my Mac Mini with boot camp Windows 7 boot if I plug in a thunderbolt disk drive

I have been using a previous generation mac mini server as a Windows 7 machine for the past two years without any issues. It was set up with boot camp and Windows 7 professional loaded on the internal ...
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3answers
2k views

How can I reformat an HDD to HFS+ in Ubuntu (without using a Mac)?

I have attached an HFS+ hard drive with Mac OS X installed to an Ubuntu machine because while booting the Mac shows a blinking folder with a question mark. I searched Google and the results say that ...
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1answer
42 views

BootCamp partition error even though my drive is one partition

I am attempting to install Windows 8.1 on my machine (a mid 2014 MacBook Pro running El Capitan) and I keep running into a BootCamp error in the first step that says The startup disk must be ...
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30 views

Resizing sparsebundle in Disk Utility

I want to resize (shrink) the capacity of the backup.sparsebundle to approx. the size actually taken up the files. What I did thus far I already compacted the image: # hdiutil compact backup....
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1answer
1k views

CoreStorageFamily::unlockVEKs() failed to unwrap the vek, status = e00002bc

I have a filevault2 disk with two partition. One is the boot partition, the other contains data, both are encrypted. Today, after installing the latest 10.8 update (10.8.4 I guess), the computer ...
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1answer
62 views

Bootcamp problems have left my hard drive a mess

I have been trying to install Windows 8.1 via Bootcamp, and have had several problems that have resulted in failures (those are perhaps a different post). I'm using Yosemite. Currently when I run ...
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1answer
43 views

How can I safely create a partition to an already bootable drive

I already asked this question on Apple's community forum, right here, so I'll post the answer here if something comes up there first. This is my problem : I recently bought an external drive of ...
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2answers
2k views

Can't Delete Partition

I created a partition to run Snow Leopard on my computer running El Capitan and no longer need it. I allocated 20GB to that partition. Here's what I've done. I first go into Disk Utility, select my ...
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25 views

Can't delete a partition on my HDD

I have created a new partition to install a new OS. Now, I would like to delete the old partition on my hard drive. Delete button is inactive. Screenshots: What I'm doing wrong?
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33 views

How to distinguish a filesystem corruption from a hard drive failure

If I understand correctly when Disk Utility starts throwing errors during a disk verification there are three possible outcomes: some errors can be fixed on the spot via the repair disk ...
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2answers
2k views

Automatically shrink existing Time Machine Backup to a fixed size

I googled for hours to find a solution for this issue, but I couldn't find an answer that fitted for my problem. My setup: I have an iMac with a ~1TB Hard Drive I'm backing it up via Time Machine ...
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3answers
34k views

I think I messed up the Fusion Drive on my 1TB iMac (with BootCamp)

this is a somewhat similar post to this one (Can't create partition on free space with Disk Utility) but not quite... It started with me creating a BootCamp partition (around 145 GB) for Windows ...
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1answer
33 views

Where is my missing drive space?

I have a 2012 Mac mini running the latest Yosemite that I use as a server for file sharing, FileMaker, calibre, Time Machine and Plex. The Finder reports that the internal drive has a capacity of 499....
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1answer
2k views

Mac Pro hangs at startup showing white screen with spinning pie wheel

MacPro 1,1; lion? startup hard drive failed (with loud buzzing). Removed bad drive, installed replacement, inserted Lion USB drive, verified new drive using the Lion usb drive, started installation ...
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2answers
7k views

How do I save iCloud photos to external hard drive?

Photos on my iPad are backed up on iCloud, but as my iCloud storage is full I want to back up my iCloud photos to an external hard drive. How do I do this on my Windows desktop PC? I do not have a Mac....
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1answer
32 views

HDD corruption after power cutoff

Yesterday a breaker tripped in the same room as my Mac Pro 1,1 running Yosemite (Hacked boot.efi.) All other machines powered up but this one. Attempting to mount via Target Disk Mode timed out, so I ...
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50 views

iMac 5k internal SSD vs external SSD performance

Can anyone point me in the direction of a real-world performance comparison between a iMac 5k's internal SSD and an external one (ideally one on thunderbolt and one on usb)? Basically, I want to know ...
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31 views

How to format a partition for bootcamp without to partitioning all drive?

I'm trying to install a Windows 10 in my MacBook Pro 2012 with El Capitan. I am now in the step that Bootcamp will create a volume for Windows installation. My MacBook got two internal (physical) disk ...