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

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Mac Hard Drive Storage Decreases even without downloading anything

I have a 128 GB hard drive on my macbook pro retina 13". My mac storage hard drive keeps decreasing for no reason, even when I do not download anything. This still happens even when I don't use any ...
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1answer
34 views

Fusion drive: replace SSD and HDD vice-versa

I've just made a Fusion Drive on my MBP 2012 and restored data from the Time Machine. Unfortunately, right now I read information that the best place for SSD is the main bay of HDD not the optical bay....
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17 views

Disk Utilities verifies disk with no repairs needed, but Mount says disk must be repaired

I was transferring some files off an old FireWire drive yesterday, but when I turn on the drive today it doesn't automount. I go to Disk Utility and see the drive, try to mount it, and get this ...
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0answers
36 views

Thunderbolt Drive issues with iMac Late 2015 OS X 10.11.4

I have two thunderbolt drives attached to my iMac Late 2015 OS X 10.11.4. I am using Mountain to mount/unmount drives. When I unmount the a drive it continues to spin, until I turn the drive off by ...
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1answer
46 views

How I put OSX on a disk with badblocks, while avoiding them?

My MacMini hdd, some months ago, stopped booting. Upon inspection, seemly a tiny amount of sectors got corrupted, but in system-related areas, and OSX went bonkers and destroyed half of my data while ...
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1answer
50 views

I need to make my partitions into a single one after a failed bootcamp, how do i do this?

I am a complete novice when it comes to macs. I recently tried to use bootcamp to run windows 10 and partition part of my hard drive. I used the bootcamp assistant and I followed all of the steps but ...
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1answer
40 views

Is it possible to encrypt a hard drive that is dual booting ubuntu using rEFInd?

I recently installed ubuntu on my macbook pro. I am using rEFInd to dual boot ubuntu. Following the installation, I tried to encrypt my Macintosh HD partition by first converting the disk to core ...
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0answers
69 views

Time Machine partition won't mount in OSX El Capitan, but mounts in Bootcamp Windows 10

Not sure what happened. Two days ago I just did a Time Machine backup and today the partition won't mount. The external disk is a WD My Passport bought several years ago and total 2 TB. I partitioned ...
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30 views

How can I add a partition to my Seagate external hard drive?

I am trying to add a partition to my Seagate external hard drive so that I can install Windows 10 on it but it won't let me add a partition at all. With a previous external hard drive I had (that no ...
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34 views

Open a corrupted .dmg

My MPB crashed and had some permission issue on booting. I tried some repairs with the recovery session but now it has a kernel panic... I have an external device I can boot from, and I made a copy ...
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1answer
45 views

Boot Camp won't work: why don't I have disk0s0 or disk0s1 partitions?

I'm trying to use Boot Camp after resolving a partition mess. I've gotten back to a single partition after receiving the The startup disk cannot be partitioned or restored to a single partition. ...
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0answers
52 views

Making Fusion Drive with USB-attached SSD?

I'm working with lots of VM images on my Mac mini and I'm looking for ways to speed things up by converting a data partition on the internal HDD into a Fusion Drive setup with an external SSD (...
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0answers
59 views

MacBook Pro intermittently won't let me login after sleep

I am occasionally running into problems where I can't login after sleep. Sometimes I open the lid of my Macbook Pro and it shows the usual login screen, but if I type my password in and click enter ...
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0answers
46 views

Move user folder (HDD) back to main drive (SSD)

Since large SSDs were quite expensive a while ago, I've moved my User directory to a 1 TB HDD back then. Now I'm going to upgrade to a 1 TB SSD and am thinking about the best and safest way to move ...
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1answer
139 views

Unable to boot Windows 10 from Bootcamp external HDD

I have installed Windows 10 Pro in Mac OS X El Capitan using Bootcamp, restored the same to external USB 3.0 HDD using WinClone Pro. Now I am getting error when booting to Windows. Steps followed: ...
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26 views

Undo/Recover a quick formatted JHFS+ HDD drive

I just have made the biggest mistake in my life, accidentally format ~2TB of my personal data. Here is information about the Disk : 2TB HDD Drive : GUID Partition Map : OS X Extended (Journaled) : ...
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3answers
56 views

Does a slow Time Machine disk affect general Mac performance?

Say a Mac Pro tower has OS X + Apps installed on a blazing fast PCIe SSD. It also has Time Machine enabled on a slow 5400rpm mechanical drive. The TM drive is internal and connected at all times. ...
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133 views

After stuck “Partitioning disk” by Boot Camp

I use a MacBook Pro Late 2011 with OS X El Capitan (10.11.4). I wanted to install Windows using Boot Camp Assistant. However, I got stuck at Partitioning disk.... It seems that it is a very common ...
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1answer
21 views

Macbook Retina recognizing replaced SSD as external despite being internal

Just bought a Retina Macbook Pro and swapped the SSD for a 1TB drive, it boots and seems to run fine, except the drive in 'about' shows as external and when I set in finder show/hide external it ...
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0answers
20 views

Lost disk space after partitioning w/ disk utility crashed

I made the mistake of deleting a bootcamp partition thru disk utility in hopes of making a larger partition with a fresh windows install. As I tried making a new FAT partition in disk utility I ended ...
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2answers
103 views

Macbook Pro Hard drive speed

I have an early 2011 Macbook Pro with a Toshiba MK7559GSXP 750GB 5400rpm hard drive (that has about 48GB free) and running El Capitan. Recently I had the feeling that things were running slowly (and ...
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1answer
40 views

How to reformat Macbook Pro SSD to regain “Free Space”

I just tried installing Windows 10 through Boot Camp. Before it actually started installing (but after I had partitioned my disk), I realized I had not plugged in a USB (which apparently you are ...
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0answers
28 views

El Captan disk utility did not see erased partition after fail bootcamp install

I try to get my full drive after fail a bootcamp install of Win. Now I have removed extra partition from my fusion drive, but can’t see empty space using the el captan disk utility. Using shell, ...
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2answers
45 views

What types of problems could lead to 10 logic board failures across 3 different laptops? [closed]

In March 2012, I bought a new 15" MacBook Pro. It required 3 logic board replacements over the next 13 months, leading Apple to replace the unit with a new 15" MacBook Pro in April 2013. That computer ...
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4answers
1k views

How do I know if I need a new hard drive?

I just received a MacBook Pro from somebody else because it was running too slow. Booting up takes about 4 minutes. I have tried formatting the drive and reinstalling the operating system from ...
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1answer
39 views

Can the cp command be used to restore a hard drive?

My cousin contacted me for tech support because her computer was refusing to boot to the startup drive, and the issue turned out to be a corrupted drive that Disk Utility refused to fix, telling us to ...
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1answer
32 views

My Mac Mini HD been wiped out

Here is the scenario: I was bouncing music and got a warning Macintosh HD is almost full! By the time I empty the trash my my froze. So I restart it and that infinite white progress bar below the ...
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1answer
96 views

Messed up my 1TB Fusion drive on my iMac with Disk Utility

Soooo something bad happened recently with my 1 TB Fusion drive on my 5K late 2015 iMac. I was creating a new 100 GB partition on my disk. So while the disk utility was busy scanning etc (doing its ...
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1answer
69 views

unlock external locked encrypted disk with applescript command by filling dialog box to cracking password by force brut

I make a terrible mistake. I totally lost my paper with the secret password for my encrypted external GUID hard drive. This external drive contains many pictures but also some works documents very ...
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2answers
52 views

How do I install new Mac OS onto a new unformatted HD

The HD crashed on my old MacBook (white Mid 2007) and appears to be unrecoverable. Though I bought a new MacBook Pro, I would like to resurrect my old MacBook, by buying a new hard drive. (It had ...
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0answers
37 views

My partition is using negative space. Should I worry?

As you can see, according to Disk Utility, I'm using negative space in /dev/disk0s7. This is obviously incorrect, however, I am slightly worried as to what this may mean for the partition's effects on ...
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2answers
51 views

What file system should I choose when formatting a flash drive?

I need to write a few large files (larger than 4 GB) on a flash drive, but I can't do it, because the file system of the flash drive is MS-DOS (FAT32). How should I format the flash drive, so I can ...
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1answer
117 views

USB Drive Size Lost After Formatting on OS X El Capitan

This is strange. I formatted my 16 GB USB drive on OS X El Capitan with FAT file system and it worked fine. However, same drive on Windows 7 PC shows only 200 MB of size. Where the heck other drive ...
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1answer
24 views

How can I back-up my OS X instance and Restore from mounted drive?

Synopsis I have been having trouble With my MacBook Pro (Mid '12, 15") I deployed tonnes of work Sunday evening/early hours Monday morning before I went to bed, leaving my MacBook running but ...
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11 views

Can't copy files to the portable hard drive via OS X [duplicate]

I can't copy my data in the MacBook Pro to my WesternDigital portable hard drive. But I've checked it using the Windows OS. But the thing is it works properly when I am using Windows. If you guys have ...
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0answers
19 views

Deleting files keeps increasing the used space on my SDD

i have a mac air with a 120gb sdd, the drive is regularly filled up with iso images, virtual box files and docker/vagrant stuff, i got a warning today saying disk space was low and i had about 8gb ...
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0answers
12 views

iMac 24" 2.16 ghz core2duo

I'm trying to install Snow Leopard but iMac won't boot from the install disk. I've also tried booting from a flash drive with Snow Leopard Install on it with no luck. It also will not boot from the ...
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0answers
56 views

Prevent internal drive from mounting automatically

I don't use the internal hard drive on my iMac any more, but for obvious reasons, it's awkward to remove it. I'd like to stop OS X from automatically mounting it when the iMac boots. Is this possible? ...
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1answer
26 views

How do I download to an external hard drive? [closed]

I have a very large file to download, and I want to download it directly to an external hard drive and not to the download folder on my c: drive. Is there a way I can do this? There only appears to be ...
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1answer
42 views

Unable to account for 23.6 GB of disk space

I have a 13-inch MacBook Air, and have been using it for about a year now. There are 23.6 GB of memory that appear to be missing from my hard drive. About This Mac -> Storage shows 91GB of files, of ...
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1answer
63 views

Accidentally ran command to erase volume with “no format”, how can I get it back?

I accidentally ran this command and now I am missing 100gb of space, how can I get it back? All help appreciated!! diskutil eraseVolume free %noformat% disk0s2 Terminal gives this diskutil info: ...
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2answers
21 views

How do I make more space on a Macbook air? [duplicate]

I have a bunch of files that I don't need. I'm wondering what's taking up all the space. I am tempted to almost format the laptop and start fresh. What can I do to find out what is taking up all the ...
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0answers
19 views

Hardware Failure. Mac won't start

I have a Macbook pro from 2010 running 10.6. Recently, it has been acting very weird. It often freezes and when rebooted gets stuck at the loading screen. After enough reboots it does work. When ...
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0answers
15 views

Early 2011 Macbook Pro shut down during start up

My MBP has OSX (El Capitan... I'm pretty sure) and Windows 10 on it. The OSX shuts down during start up. It will show the apple logo and then a load bar that reaches about half way before the system ...
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1answer
165 views

Will there be a USB-C to thunderbolt 2 adaptor? I only need data transfer to be higher then USB 3.0

Right now USB C ports are just arriving in laptops and I unfortunately dedicated to go with a cheaper laptop (pc) but with thunderbolt-2. The thing I don't like about thunderbolt 2 products is the ...
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1answer
51 views

250G Disk space has filled up, but DiskInventory only adds up to 60Gs?

I cannot for the life of me figure out how my SD drive is filled up because I don't have any large files, especially enough to fill 250G. I used DiskInventoryX to do a map of my drive and got this, a ...
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1answer
48 views

Can not boot MacBook Pro 2011

I have a MacBook 2011 running OS X 10.11.5, 16GB RAM, 512GB SSD Drive. Today when I am restarting my computer, I accidentally pressed Cmd+R while booting. Now I try and restart my computer, it shows ...
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16 views

Can I download files directly into alias folder for Logic Pro X?

If I try to download sound files for Logic and they are supposed to get downloaded into the folder at ~/Library/Application Support/Logic/ and I have that specific folder made as an alias to a set of ...
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0answers
98 views

How can I repair hdd using Disk Utility if First Aid options (Repair, Verify) are all greyed out?

Would really appreciate any help in fixing an external drive so can use with my Mac again. I had a power loss & when computer rebooted it was unable to see the attached Freecom 320Gig Hdd (FAT32 ...
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17 views

OS X stopped recognizing my HFS+ Time Machine partition on my USB GPT disk

I have a 2 TB USB drive that's using GPT, but OSX (10.11.4) on my macbook pro (early 2015) stopped recognizing my HFS+ partition after I inserted a partition before it ("TESTPART"), effectively making ...