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

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“Other” storage in Mac 10.9

I have a Macbook Pro, 10.9 with 500GB of hard drive storage and 4GB of RAM. When I access the Utility app "System Information", this is what I got. There is a yellow block called "Other". What does ...
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30 views

What is the specification of the extra screws needed to install a second drive to an upper-drive populated Mac Mini 2012?

I ordered the wrong OWC Data Doubler kit. I didn't notice the note saying that some Mac Minis have an upper drive configuration and that it would require a variant of the kit with additional ...
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325 views

External USB3.0 4TB HDD is not recognized by Mac OS X

I've bought an external 4TB HDD. It is this this one. The problem is that my Macbook Air 11" 2013 (with Mac OS X 10.9.2) does not recognize it. The device is ok. I can use it from other computers ...
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79 views

Damaged hard drive due to magnet damage (Macbook Pro)

I am able to get internet recovery on my Macbook Pro that I previously wiped with a magnet I was trying to re-install OS X Mountain Lion again but when I got to the 'choose a disk' there was no ...
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30 views

Internal Hard Drive Not Visible

I have an early 2009 MacBook running OSX 10.9. Last week, my hard drive crashed. I bought another and installed OS 10.9. Everything works. I do not, however, see the drive's icon on my desktop. ...
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52 views

Backing up files from corrupt disk from Windows Bootcamp

So, mysteriously with no previous bad behavior my computer stopped booting, stuck in the gray loading bar cycle and then shutting down, the problem I believe wasn't obvious at first. I booted to ...
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78 views

How to get Mac App Store to stop thinking app is installed on external drive?

I ran into a problem where the Mac App Store said that a particular app (Numbers in this case) was up to date, but whenever I launched it I would get an older version. I finally did a search across ...
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107 views

MacBook will read USB drives with no problem, but will not see the USB drive as boot drive

I am trying to install OS X Lion on a Macbook 4,1 which I've upgraded to 4 GB of RAM. It should support this OS, however I cannot get my Mac to see the USB drive as a bootable option. It's a SANDISK ...
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621 views

Recover Deleted Files on Mac OSX [External NTFS]

I have accidentally deleted some files on my Mac OS X Mavericks. Actually, I was trying to burn an .img file to my flash drive which was located at /dev/disk1 (at the same time I had connected a NTFS ...
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975 views

Macintosh HD not showing up on disc utility

I am trying to do a clean install on my Macbook Pro 13" from 2011. Here is what I did so far: 1) Booted up on my USB Stick with Mountain Lion Installer mounted on it 2) Opened up Disc Utility and ...
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352 views

Two systems and SSD lifetime increase

I bought a Late 2013 iMac with new generation PCIe Samsung XP941 M.2 based SSD 256Gb. Really powerful SSD. But of course, I was scared about SSD rewrite cycles and wanted to check it because I want to ...
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189 views

Copy/Migrate FileVault 2 encrypted hard drive

I'm running OS X Mavericks and have the entire hard drive encrypted with FileVault 2. I intend to upgrade to a larger hard drive (actually an SSD). In the past when not using FileVault, I used Carbon ...
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104 views

How to export files from hard drive in Snow Leopard CD?

I have a macbook 5,1 that won't startup. I'm going to reinstall Snow Leopard with the CD, but is there a way to export some of the files that are in it? I can't seem to gain access to them through the ...
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133 views

Mid 2010 i7 Macbook Pro 6,2 stuck at Apple logo on boot

Recently my 15 inch Macbook Pro (mid 2010, i7) hasn't been booting normally (No drops, no spills, etc). It just hasn't been able to boot normally. The issue I'm having is it only goes as far as the ...
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141 views

For the Apple SSD drives, will they run slower with less free space available?

From what I understand, most SSDs will run slower once there is 20% or less free space available, due to TRIM/garbage collection. However, are Apple SSDs the same way? The reason I ask is because ...
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174 views

Recover GPT Hard Disk files on Windows

My friends 2008(ish) era macbook pro died recently but the SATA HDD is fine, I have removed it and plugged it into a Windows 7 machine. I can see in Paragon Partition Manager that the drive is a GPT ...
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107 views

Hot File Clustering with multiple partitions

I'm planning a performance-oriented clean install of OS X 10.6 and I was wondering if the hot file clustering feature will exists only on the boot partition or if there will be one for each partition ...
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356 views

External hard drive unplugged while running iTunes…Corrupted files

I have nearly 2TB of Movies and TV Shows copied to iTunes on an external hard drive. Last night, I was unplugging a cord behind my desk and I accidentally unplugged my HD. Well, when I plugged it back ...
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203 views

My internal hard disk is 0 byte and a flashing question mark

I have been striving to bring my laptop to life, however, I am seeing a flashing question mark on my MacbookPro screen. I tried disk utility and it is just showing me Media and it is 0 byte. I ran ...
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104 views

windows can't read my HDD installed in my dvd slot on MBP

I've swapped my dvd drive with an HDD drive on my MBP 2008 non-unibody. I can read it from MAC os but not from Windows. I did configure it to be PC compatible... Anyone knows why it's not seen as an ...
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141 views

How can I reconfigure the RAID settings on a Maxtor OneTouch III?

I have a 1TB Maxtor OneTouch III. This is the drive that comes with two 500GB disks and software to configure RAID 0 (mirroring) with 500GB of storage, or full use of both disks for 1TB of storage. ...
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174 views

Booting internally from a harddrive that was used on a different Mac

I just bought a new Mac Mini 2012 and have just replaced the drive in it with an SSD from my old MBP. Now the Mac Mini wont boot anymore, showing a stop sign when I try (after holding alt to begin ...
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53 views

How can I boot to Windows on my Mac?

I have a MacBook Pro that I installed Windows 8 on via Boot Camp. I've managed to boot to it, before, but since then I've made two new partitions on the disk, and I'm afraid it's messed things up ...
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167 views

Move Large, Frequent files closer to center of HDD

Is there a native/third-party utility (or native trick) to move large, frequently-used files closer to the center of the disk? I was under the impression that the OS tried to automatically optimize ...
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Where should i look to improve slow I/O performance measured with dd?

I have been measuring my primary disk I/O with the following command : dd if=/dev/zero bs=2048k of=/Volumes/Toshiba/tstfile count=1024 2>&1 | grep > sec | awk '{print $1 / 1024 / 1024 / $5, ...
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Macbook air booting from external hardrive stuck on startup wifi screen

I'm moving over my old macbook computer to a 2010 macbook air, I replaced the hard drive in the macbook air prior to this so there is nothing on the hard drive that is currently in my macbook air. I ...
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16 views

How to repair a MacBook Pro 2007 hard drive bus?

Is there a repair I can do to the hard drive bus on a MacBook Pro 2007? I've changed the SATA cable but it still won't see the drive, which I know is good as it boots externally! Disk Utility doesn't ...
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17 views

Move data from 1 hard drive to the other

I have a bootable partition on an external drive with some old data that I want to move to a new external hard drive. The partition on the old drive is 500GB however theres only 320GB of data. So i ...
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74 views

Disk problems and reinstalling Mavericks!

This started after I installed a BootCamp Windows 8.1 partition. That partition ran out of space so I decided to not heed any warnings and tried to format my Macintosh HD into free space, 10G of free ...
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Disk partition interrupted

So I was partitioning my macbook's hard disk so as to install addition operating system. But as disk utility was in the process of partitioning, I closed the disk partition (for a reason) thinking ...
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31 views

My hard drive doesn't work but Bootcamp work

For two days my mac is "dead", the hard drive crashed, so I reformat (twice). Then via the Recovery I wanted to reinstall Mavericks but at the end of the proceedings it appears to me there remains ...
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MacBook Pro doesnt boot after systemupdate / repairing volume doesnt work

i have a problem with my MacBook Pro. I installed a Systemupdate, reboot and then i had a loading screen which loads a long time. Then i started the mac in verbose mode and there is... hfs: mounted ...
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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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Using Windows to boot up a hard drive with Mac OS in a virtual window

I have the latest Mac OS X Mavericks installed onto a hard drive which I can boot from. As I mainly use a Windows machine, is there a way to boot up the hard drive in a virtual window on Windows, ...
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36 views

New Hard Drive Install Failure

I got a problem with my 2012 Mac Book Pro, I'm trying to install a new 750 Go Sata 3 with 7200 t/min WD Black in it. The problem is when i try to reinstall OSx Mountain Lion on it, it didn't find the ...
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Dropped computer. Will not boot. Unable to find driver for this platform \“ACPI\” MACOSX version

I dropped my computer two days ago. At first it would not boot up at all, not even showing the grey circle with the line in it or anything at all. I did internet recovery and did some cleaning up of ...
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Apple to Windows External Hard disk file system error

I have a Toshiba 1tb hdd. I bought an apple laptop few weeks ago and the hdd has been working properly. Today I wanted to move some files from my old windows pc to the mac. When I connected the hdd ...
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135 views

Replaced hard drive - trying to do a clean install of OS-X on 2011 Macbook Pro

I've seen plenty of how to's on how to upgrade if you have a working installation of OS-X, however I purchased this macbook used, it needed a hard drive and a keyboard. So I put a new hard drive in ...
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59 views

How can I use an external hard drive as a secondary internal hard drive on OS X

So I have a 2011 iMac that has a 500 GB. Hard drive inside. I could not buy a new computer but I bought a 2 TB. external hard drive that I connected using firewire, since it is almost as fast as ...
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288 views

I can't boot into Windows 7 on Boot Camp

I have a mid-2009 MBP. A couple of years ago I swapped out the optical drive for an SSD, made the original hard drive a Boot Camp partition and installed Windows 7 on it. It has been a brilliant "best ...
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57 views

Big boo boo on reinstalling OS X Lion. Help!

I have OS X Lion and erased the hard drive to prepare and install Maverick. Can you hear the violin playing? Here are the issues: My hardrive (Toshiba 750G) resized down to its branch hardrive ...
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47 views

Can you partition the HD of a G3 iMac for OS 9 and OS X?

I have an old Tangerine iMac G3 in nice condition, I installed a clean copy of OS 9 on it and I can run the "iMac Demo Summer 1998" interactive demo which is neat. I'd like to install OS X (Tiger) on ...
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69 views

Hard drive Ejects itself while running ddrescue

I don't know who to blame apple or ddrescue. So Sorry if this is in the wrong place! :) I have -Macbook pro Intel core I7 running Maverick -Failed 120Gb HDD (really old... more then 8 years i ...
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69 views

Monitor disk activity per volume without third-party software

I have many disks/volumes connected to my OS X system. I want to monitor, in real-time, read/write speed for each volume. OS 10.9 activity monitor shows only the cumulative numbers for all volumes, ...
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Cannot boot Mac Mini with stripped RAID -fsck hangs

Today we coould not get one of our machines running. After several hours of doing the 'standard' tasks like fixing permissions etc. we hit a dead end. Here's what's going on: Machine starts, we can ...
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2k views

macbook doesn't recognize internal HDD, only when connected via USB

yesterday something weird happened. After my 13' macbook pro ( early 2011 ) was running all night while playing music, in the morning I just closed it and went home from my friends house. When I got ...
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Removing OSX without deleting media files

I have two drives on my Mac, Macintosh HDD (Mountain Lion) and Macintosh SSD (Mavericks). I recently installed Mavericks on Macintosh SSD. I still have Mountain Lion installed on Macintosh HDD along ...
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88 views

USB drives connected to hub disppearing

I've got four external USB drives connected to a 7 port powered dlink hub. All of them are externally powered, save for one of them. The hub is connected to a late 2012 Mac Mini. If I connect the ...
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58 views

Filesystem not showing correct size

I installed a new HDD and transferred my old data to it by using dd on my old HDD and then dd again to the new HDD. However, when booting from the new HDD, it does not recognize the new, larger disk ...
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184 views

Time machine restore failed to fix boot

After connecting MacBook Pro running 10.8 to video project, the system crashed and after restart it booted into recovery (OS X Utilities). I tried to fix the problem with checking disks and disk ...