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

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Seeking for some advice of Mac Mini vs Macbook Pro both maxed out specs [closed]

I am looking for some advice about getting a macbook pro or mac mini. Basically, the case with me is that I currently have a mid 2014 macbook pro that is a base model. I use the macbook pro at home ...
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1answer
34 views

How secure are files on an unencrypted hard disc?

How secure are files, that I saved on an internal Macbook hard disc using OSX 10.11? I cannot check whether the hard drive is encrypted using FileVault as the machine crashed. I am thinking whether I ...
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0answers
49 views

Need help fixing hard disk partition map

I have a 500GB Samsung 840 PRO SSD drive. Until recently it was the primary hard disk in my Macbook Pro (late 2011 17"). I got a 1TB SSD which I decided to use as my primary drive instead, and put the ...
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1answer
2k views

Can you Recover Data from a Filevault encrypted harddrive externally?

My mac won't boot and it maybe a harddrive issue, but I need to get the data off it, is it possible to recover the data using a set of tools if I know the password and have the appropriate cables?
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1answer
8k views

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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1answer
115 views

DIY Fusion drive with 3 drives

Is it possible to build a DIY Fusion drive using 3 drives - 2 HD's and 1 SSD? Will the Fusion machinery optimise on three levels i.e. SSD, then fast HD, then slow HD? I have a mid 2011 27" iMac, ...
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2answers
1k views

Disk will not mount, but shows up on System Profiler

My internal 250GB failed on me the other day, so I replaced it with a new SSD and HDD combo. I have the failed disk connected via USB/SATA, but it will not mount. However, it shows up under System ...
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0answers
44 views

Delete button for partition not clickable in Disk Utility

I had another partition on my MacBook where I had Windows installed (the partition is called BOOTCAMP). I am not using Windows at all any more, so I would like to delete the partition on my hard disk ...
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42 views

Western Digital - My Passport Pro 4TB Drive won't stay mounted in JBOD Mode

I have a WD My Passport Pro, currently having issues as I need to encrypt the drive in order to protect the data I am going to store on it. I am aware that this will not be possible with the drives ...
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1answer
56 views

How to mount ufsd_NTFS partition

I have a USB disk and when I try to mount get the following error mount: /dev/disk3s1: unknown special file or file system. diskutil shows /dev/disk3 (external, physical): #: ...
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1answer
127 views

Cannot use Disk Utility to create partition from free space on external USB drive

I have a 3 TB Western Digital red disk in a USB hard drive dock. The drive is GPT, and I have two volumes on it (one volume is "Microsoft Reserved", other volume is NTFS). The other part of my drive ...
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1answer
24 views

Encrypted Hard Disk troubleshooting

I have problems to read an encypted hard disk. Unfortunatly I do not remember if I did encryted with Time machine or Disk Utitlity. I think I did it with the first one (Time Machine) as I used the ...
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2answers
9k views

How to partition an SSD that fails with error 69888 - couldn't unmount disk?

I erased the SSD drive in my MacBook and was reinstalling Lion when it failed about 75% through the install. Now in Disk Utility, sometimes I see the SSD drive and sometimes I boot and it's not there ...
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8answers
38k views

How to check if my HD is case sensitive or not?

How can I get information if my HD format is case sensitive or case insensitive? I want to make sure my Mac running Mountain Lion has a case sensitive file system.
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2answers
76 views

Finding suitable SSD for my MacBook Air

I have a MacBook Air (mid-2012, MacBookAir5,2). I'm really far from terminology of this subject, I have no idea what is flash memory and don't know if all MacBook SSDs must have a flash memory ...
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1answer
73 views

Folder with a question mark on purchased Mac

I just got my MacBook Pro mid 2012 laptop and stupid me did something to it, now I have a flashing folder with a question mark. The previous owner said she accidentally deleted the software when she ...
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0answers
22 views

How to purge all Xcode temporary data?

Is there a tool or method to purge all unnecessary Xcode temporary data? Xcode seems to be creating files each time you build an app or run it with the simulator. I'm not sure what I can delete ...
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4answers
3k views

Is it possible to restore OS X .dmg file to External Drive?

I recently traded in my iMac with 1TB HDD for a MacBook Pro with a 256 GB flash drive. I want to restore my previous hard drive but obviously it won't fit on the new hard drive. Is it possible to ...
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31 views

Debugging verbose boot mode

My issue is that a MacBook Pro (mid-2012) started to have problems booting up today so I'm trying to debug the boot process by running it in verbose mode. The problem is I can barely read what it ...
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1answer
125 views

Accidentaly converted from a basic disk to a dynamic one

I got a MacBook Pro (13-inch late 2013 retina) So I installed Windows 7 using bootcamp and all was fine. I then needed to create a 32MB FAT16 partition, when Windows prompted me to convert to a ...
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1answer
32 views

Boot Camp issue

My Windows system is a folder in the Startup Disk PrefPane, but shows an hard drive icon on my desktop. How do I turn it into a hard drive icon in the start up disk? I've tried everything but haven't ...
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1answer
155 views

Searching through a whole lot of PDFs on an external disk

I do have one Tera of Texts (mostly PDF) which is really really much (something like 100'000 documents). They are on an external USB3 and, of course, spotlight-indexed. When I look by text search ...
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2answers
110 views

Fusion drive is not working although the system can find the SSD

I own an iMac late 2013 with a fusion drive. Recently I installed Windows 8.1 using Bootcamp on a separate partition on my disk. After a few days, the booting process of OS X started failing and I had ...
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1answer
137 views

Fusion drive benefits for Boot Camp?

I've got a late-2015 Retina iMac with Fusion drive. From what I understand, but want to confirm, is that there is no real benefit for Boot Camp as the partition is completely on the HDD side, so the ...
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1answer
67 views

Recovery: OS X Yosemite can not mount NTFS partition but windows can mount it in 10 minutes

I have a Seagate GoFlex 2TB external HDD that stopped working one month ago. The head of this external disk seeks continuously and produces sounds even when it is not connected to the USB port. On OS ...
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2answers
48 views

Missing disk space after repartitioning

I tried to make a partition and then tried to undo it. Now, I don't know how to get the missing disk space back. As you can tell, I have 751.28 GB disk. Macintosh HD and Recovery HD have 557.4 GB. ...
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4answers
3k views

There is about 60GB of space being used on my HD that I cannot find

Am I just bad at math? OmniDiskSweep isn't picking up what is using my space. I recently deleted a 60GB drive (not partition) that VMWare Fusion was using, and emptied the trash. Now it doesn't show ...
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1answer
493 views

Partition Map Failed Because No Slices Were Found

I have an external hard drive that I've used with my Mac for years, with no issues. Today I tried to plug it into my work PC to get some files off it (Windows 8), and it wasn't recognized. I tried to ...
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2answers
37 views

iMac disk write issues

I have a problem specifically with Photoshop Elements 12 Organiser and the ability to write to the internal drive on an iMac 5k with El Capitan. I have full read write access to the files on the disk ...
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0answers
153 views

Can't make new partition due to error “volume Macintosh HD was found corrupt and needs to be repaired”

When I run Disk Utility on my 2012 MBP (SSD, running El Capitan) I sometimes get the error: The volume Macintosh HD was found corrupt and needs to be repaired. Other times, I get no errors. ...
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1answer
19 views

Can't launch or uninstall Disk Drill

I've got these two icons in my menu bar, which appear to be an application called Disk Drill (see red rectangle): Basically, I want to uninstall Disk Drill and have these two icons removed from my ...
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44 views

Startup disk space mysteriously being consumed

Lately, my Mac OS X Yosemite has been having this weird issue where my startup disk keeps getting consumed by an unknown source. Every time I restart my computer, the disk space would come back ...
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30 views

Flashing Folder with question mark

Was getting this error and figured I had a bad hard drive, so I put a new Samsung SSD in my MacBook Pro 13. However when I try to install new OS X using internet recovery I can't find the SSD. The ...
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40 views

External disks are recognized as internal ones by my iMac

When I connect portable USB disks to my iMac via a USB hub, my iMac always recognize them as internal disks. Like this, However when they're connected directly to the USB ports on the back of my ...
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2answers
86 views

What filesystem should I use to share across Mac (Yosemite) and Linux?

I need to move large files (5-5Gb) from a Mac to a Linux machine. Network transfers are too slow, so I wanted to use USB drives. However filesystems seem to be a bit of a nightmare: HFS+ is hard to ...
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0answers
24 views

Install Windows to portable hard drive?

I'm trying to install windows on a portable 1tb hard drive and boot it via boot camp on the same hard drive. Want to know if this is possible? My main motivation is due to my school having mac pros ...
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1answer
114 views

How to mount a DMG image created with dd?

I created an "emergency" image of my dying HD using the procedure explained in Recover a dead hard drive using dd. Now when I try to mount the dmg file I get the message: "The following disk image ...
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0answers
35 views

Cannot create a dmg file and save it onto a usb flash drive. Error: Unable to create “ ”. (Operation not Permitted)

I currently am trying to create dmg files from folders inside my 128 GB flash drive. I recently re-formatted it into the exFAT format. The folders I am trying to convert into a dmg file are around 15 ...
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0answers
96 views

Hidden files taking up hard disc space?

I’ve used DaisyDisk to analyse my file usage on my MacBook Pro (mid–2012), but the numbers aren’t adding up. Of 500GB, it shows ~425GB used, but the breakdown only adds up to 280GB. The diagram itself ...
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1answer
57 views

Disk utility will not allow me to resize a partition on an unencrypted external hard drive

I want to back up a copy of Windows onto a new partition of external hard drive currently formatted in exFAT. I don't know how to use Windows, so I want to use my Mac (mid-2009 MacBook Pro, running ...
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1answer
18k 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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1answer
21 views

Migrate 1 TB of iMovie '11 to iMovie 10.x if migration requires twice the disk space?

I have about 1 TB of movies in iMovie '11 (version 9.x) format, and I need to migrate this library to iMovie 10.x now. This process is described here: https://support.apple.com/kb/HT202853 However, ...
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1answer
71 views

Lost hard drive space to Boot Camp

Boot Camp caused ~200 GB of my 750 GB HD to disappear and I cannot re(un)-partition it through Disk Utility and when I try to reformat the storage through the terminal using: diskutil cs resizeVolume ...
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1answer
407 views

VirtualBox VERR_NOT_SUPPORTED opening Windows 10 partition/vmdk

I'm trying to virtualize my physical Boot Camp partition, so I can do small Windows tasks from Mac without restarting. I followed mostly this tutorial but also read others. But now when I try to ...
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3answers
250 views

Can there be two separate Time Machine Backups on the same external drive?

I'm interested in buying an external hard drive. I'd like to know whether if it's possible (and simple if so) to have two separate Time Machine Backups from two different MacBooks at the same time?
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Hard disk default icons

This is just a curiosity: what's the reason I ended up having two different icons for two external hard drives? In my case in the Finder I have: The information panels for these two are: On ...
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3answers
17k 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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2answers
1k views

Enable writing to NTFS harddrive with non-standard name on Mac

I have a lot of NTFS hard drives back when I used a Windows PC. I'm trying to write to these drives with my Macbook Pro on OSX Yosemite 10.10.2. I'm going through this tutorial. I have to write this ...
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1answer
91 views

Can I enable FileVault and then partition my hard drive later?

I just bought a 2014 MacBook Pro with a 512GB SSD. I updated to El Capitan today and when it booted up for the first time, it asked me if I wanted to enable FileVault. I chose not to because I wasn't ...
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1answer
131 views

Problem with 3 TB Fusion Drive, it can't be deleted, formatted or partitioned

I want to clarify that I already followed the instruction with I think I messed up the Fusion Drive on my 1TB iMac (with BootCamp) but I think I have mayor problems. I followed the instructions to ...