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

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Free data recovery softwares for mac

So I forget to backup my 1tb external hard drive before partitioning it, and now I obviously have no data on it. Some data recovery softwares showed me the data was still there and not overwritten yet....
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I made a “fusion drive” using 2 SSDs, is this a bad idea?

I have a late 2015 5K iMac with 3TB fusion drive, which is 128GB SSD and 3TB spinning disk. This morning I took out the 3TB disk and put in a 500GB Samsung SSD, getting a total of 628GB of flash ...
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1answer
451 views

Boot from usb take forever

Recently I made the stupid mistake of erasing MacBook Pro (2012) HDD without immediately installing OS X. And now it can't even boot or get to recovery utilities. So I decided to make a bootable OS X ...
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Malware and or trojan on Mid 2011 iMac

My iMac was hacked recently. As of now it came back pristine after being wiped at our local certified Mac store. Ive not signed into it yet, it is supposed to be running 10.11. Yet, when I turn it on ...
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4answers
7k views

Deleted photos from MacBook but storage space not reclaimed

I recently ran out of space on my MacBook Pro because I have a lot of pictures saved to it, so I went out and bought an external hard drive (2 TB). I moved every single photo on my MacBook hard drive ...
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2answers
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how to access Macbook Pro hard drive after network boot (OptCmd-R)

My mac won't boot. I need to re-install OS. But hard disk is too full, so I need to delete some files. I boot Opt-Cmd-R then open menu > Utilities > Terminal but bash shell only shows boot partition ...
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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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7answers
149k views

Is it safe to delete ~/Library/Caches?

Is it safe to delete the file Caches, in the Library of the Mac OS X Hard Drive? It's a pretty big file, 3.56 GB, Caches reminds me of logs i don't need or browser cookies. Is it safe to delete the ...
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1answer
33 views

Macbook Pro does not recognize brand new internal hard drive

I have a 13.3" mid-2012 2.5 GHz Macbook Pro and wanted to upgrade the internal HDD from the factory standard 500GB capacity to a 1TB. I popped the bottom case, discharged any static, undid the screws ...
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12 views

Got Error hfs: _DKIOCCSMAP error 30 is the drive toast?

Tonight suddenly I started getting errors that files couldn't be written. I rebooted into the Recovery Partition and ran First Aid. It said things were fine but also that it Shrank my File System and ...
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Why can't I see my hard drive?

I'm running El Capitan on Mac OS X. MacBook would not boot (would hang on the Apple logo progress bar screen during start up). I brought it to Apple Store genius bar, guy said the hard drive is ...
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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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16 views

Can an iPhone 5 or later be used as a Bluetooth drive?

This question is prompted by this question on Ask Ubuntu, but before I make myself look like an idiot, I should do better research. Basically, can an iPhone (5 or higher) be used as an external ...
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5 views

Problem Moving iMovie 10 projects to external hard drive

I have imovie 10. I run my imovie library from an external hard drive connected to my imac. I have attached an additional external hard drive and created a new iMovie library (of a different name) ...
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1answer
13 views

Grey screen apple logo prohibitory sign etc MacBook 2009

I have an older Mac book that will not boot. I have tried all key commands including fcsk which resulted in a "mach kernel" end result, so nothing worked. I don't have a system install disk (bought ...
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1answer
35 views

Corrupted WD hard disk? Macbook Air says “hard disk not readable”

So one night I finished editing a video and I was so excited that I got up and realised the hard disk was still connected to my Macbook Air. When I stood up, the hard disk was hanging on the Macbook ...
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3answers
29k views

USB Drive Will Not Mount, Not Listed in Disk Utilities, but Found In System Profiler

I have a Seagate FreeAgent Go drive with the optional docking station. I use it to keep files that I don't access on a regular basis and as a place to do "quick backups" of things like my Paperless ...
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0answers
16 views

How do I get my photos/videos off of icloud directly to an external hard drive?

I have a MacBook Air and a hard drive that is compatible. I have already moved all photos and videos from my computer storage to my harddrive so no issues there. My problem is that I can't figure out ...
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1answer
25 views

How can Disk Drill say it has recovered 2.4 TB of files when the HDD is only 2 TB?

I had a serious failure on a 2TB external HDD this week. Yosemite says the drive is "not readable by this computer." Oh well, it happens to all HDDs sooner or later. Even though the contents could ...
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1answer
1k views

External disk - Unrecognized file system (-69846)

I have an external storage with 2TB that was working nicely. But since last week, when I unplugged the USB before eject it, the disk is not readable anymore. When I insert USB, I can actually see ...
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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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1answer
31 views

ATA Drive vs Flash Storage

I am a student who is looking to buy a Macbook. My budget is 1200 USD. I will be using it for programming mostly. I came across 2 laptops: 13-inch MacBook Pro Item Price:$1,134.00 Hardware 2....
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1answer
20 views

Does Time Machine take advantage of two backup disks to backup more fine-grained snapshots?

I use Time Machine with two backup hard discs. Does Time Machine create an identical copy of the data on both disks, or does it back up more fine-grained snapshots to different disks, so that I have ...
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What is com.apple.bird? Why does it grow so big?

Trying to clean up their hard disk, some users discover ~/Library/Caches/com.apple.bird is pretty big. In the order of too many Gigabytes. What is it?
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2answers
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Can't create a new partition on an external drive's free space

I have a USB2, 500GB external hard drive that I use for Time Machine backups. In order to test something, I created a new partition in the drive, roughly 30GB in size. Once I was done with my tests, I ...
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3k 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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1answer
5k 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
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
41 views

El Capitan Installer consistently corrups HFS+ superblock

The standard, non-beta El Capitan installer corrupts the HFS+ superblock, and states that it cannot fix the hard drive and cannot continue with installation. (The repair tools won't fix the hard drive ...
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1answer
37 views

WD My Passport 0820 USB HFS+ data disk drive partition problem following accidental use of Recovery Assistant

I have edited this post in view of recent developments I have a 2 TB USB Disk used for all my data. I accidentally ran Lion Recovery Disk Assistant on it, instead of my Pen Drive, to make a bootable ...
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1answer
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Needing to run fsck -fy “often” should I send to repair?

Every month I usually give a go to Onyx so I repair all permissions and such. Every time I do that, I get that I need to repair the Disk and I end up having to boot with the single user (in which I ...
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23 views

External Hard Drive Doesn't Initialize

I have just purchased an 2.5" external hard drive enclosure to accommodate my 2.5" SATA hard disk for use on my El Capitan 10.11.5 MacBook Pro Retina 15 (A1398) computer. However, every time connect ...
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2answers
2k 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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15 views

Time Machine Backups - Very Slow and inaccurate size

So about 1 1/2 years ago, I bought a WD My Passport for Mac as my Time Machine backup disk and a place to store files. When the drive gets around 5 or so backups, I still have plenty of free space ...
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1answer
41 views

Format the External Hard Drive from Hell

I have an external drive that is basically completely screwed. It’s just for backups, and I have redundant backups, so I don’t care about losing the data, I just want to completely format it and get ...
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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
39 views

OS X hangs up intermittently - spinning beachball of death

My MacBook Pro hangs for 5 to 10 seconds intermittently. Basically, when I either click or type, the computer just hangs and then the spinning beachball shows up and it takes about 5 seconds to ...
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Where is the hard disk in the mid 2012 15" Macbook pro with retina

I was following various guides for replacing the hard drive. However my mac does not seem to have the standard 2.5" SSD/SATA drive: see this screenshot: The black rectangular sections are too small ...
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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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0answers
21 views

Transferring Windows 7 OS from my Mac to an external harddrive

So, in disk utility my Windows 7 is under the same internal hard-drive as the Mac OSx, but it shows that my Windows 7 OS is also not-mounted and the format is MS-DOS (FAT). I want to literally just ...
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1answer
48 views

How to install windows 10 using bootcamp?(Hard disk problems)

Here's what I did while installing windows 10 using bootcamp.Firstly,i modified the Info.plist file of bootcamp in order to create a live usb(since I have a MBP with an optical drive).It worked.While ...
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2answers
1k views

Samsung EVO 480 *and* stock hard drive not recognised by Snow Leopard installer

A friend of mine came to me with her Macbook Pro 8,3 (17 inch, 2011). The hard drive had failed, and booting into the recovery disk didn't show a working hard drive. I went out and bought her a ...
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1answer
19 views

How to automatically turn off external hard-drive connected to Time Capsule when idle?

I have a 5th generation AirPort Time Capsule (3TB) with an additional G-DRIVE GEN4 (3TB) external hard-drive attached to it. The external hard-drive has an on/off switch. Is it possible- and how can ...
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1answer
37 views

How to repair a drive after accidentally changing the partition scheme?

I was using the Boot Camp. Somehow I managed to change the GPT partition scheme on my external hard drive to a MBR partition scheme. Below is the output from the command sudo gpt -r -vvv show /dev/...
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3answers
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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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2answers
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OS X: Can I track what files are being accessed on a disk?

I have several external hard drives. They're consumer drives which "go to sleep" (spin down) automatically when unused; I can't (and don't want to) run them 24x7. I use them strictly for backup and ...
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1answer
57 views

New internal hard drive not spinning on MacBook Pro A1278 13", Mid-2012

The Hitachi 5K750-500 initially installed in the MacBook A1278 13", Mid-2012 failed. I bought a new hard drive (Seagate ST500LT012) but it was not detected by the Disk Utility. I found that the hard ...
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2answers
358 views

6TB drive in Macpro 2008/2010

The 6TB drives have changed their mounting hole configuration. Has any vendor introduced a bracket for the 2008-2010 Macpro (I know these are different from each other, I own both) to handle this? On ...
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6answers
60k 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
1k views

Can I backup a Time Capsule to a HDD drive connected to its USB port?

I have a 2TB Time Capsule and multiple external HDDs. I recently bought a 4TB external drive, now I'd like all my files, in all my HDDs to go to the 4TB drive that is connected through USB to the ...