Data from Unmountable Mac Volume can be easily retrieved now with the help of OS X File Recovery Software; it runs well on all the latest Mac versions such as Yosemite, Mavericks, Mountain Lion, Snow Leopard, etc

1. Ideal Solution to Recover Data from Unmountable Mac Hard Disk Drive
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2.  Mac operating system is similar to Windows operating system, but
it has some advanced features, which we won’t find in Windows.
 Most of the tasks in Mac can be performed without much effort,
we should be thankful for the developers and designers of Mac OS
X, as user friendly graphical interface has been programmed into it.
 It easily supports storage and retrieval of all types of files that are
stored in Mac system.
 With the advancement in technology, Mac OS X has been upgraded
to different versions such as Mavericks, Mountain Lion, Snow
Leopard, Yosemite, etc.
 According to our needs, we partition our Mac hard drive into
different partitions of varied size.
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3.  Though, we feel that Mac hard drive is safer and secure for our
data, sometimes due to several reasons, Mac hard drive becomes
unmountable and results in heavy data loss from the hard disk
drive.
 Unmountable in the sense, Mac operating system fails to recognize
the hard drive, due to which we lose access to our Mac hard disk
drive. As a result of this we come across severe data loss situation.
 If you come across this kind of scenario, then need not worry, as
technology has improved a lot and with the help of advanced
technology a data recovery tool named as OS X File Recovery
Software has been designed and introduced in the market.
 Before going to know much about this data recovery tool, it is
important to know few common scenarios that cause Mac hard
drive unmountable.
http://www.osxfilerecovery.com/from-unmountable-drive-mac.html

4.  System Crash: Sudden crash in the system due to some fault or error in
the operating system while you were accessing hard drive can make the
HDD unmountable. System crashes due to sudden power outages that
causes abnormal termination of the system and makes the drive
unmountable.
 Partitioning Error: Basically, partitioning is the process of dividing Mac
hard drive into various parts so that all our data can be arranged in
particular order. Certain tools are used for creating partitions and due to
application malfunction or fault in program, partitioning errors may occur
and hence makes the drive unmountable.
 Catalog Record Corruption: Catalog record contains all information
regarding Mac volumes and its contents. Any corruption to catalog record
due to logical errors can cause Mac hard drive unmountable.
 Virus Infection: Viruses get entry into your Mac system from various
internet sources that are accessed from the system or while transferring
files from other infected device. In worst cases, it corrupt the Mac volume
and make it unmountable easily.
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5.  With the help of simple yet powerful and advanced graphical user
interface loaded application like OS X File Recovery software, you
can easily scan unmountable Mac hard drive and recover data from
that partition in few simple steps.
 Advanced feature has been added in this tool to add or edit the
signatures for the files that are not listed after the completion of
scanning process.
 It allows users to evaluate the performance of the software by
providing free demo version. Demo version scans your
unmountable hard d rive and extracts all your files without missing
single one within few clicks.
 All the recovered data in demo version itself can be viewed using
the Mac finder styled interface.
http://www.osxfilerecovery.com/from-unmountable-drive-mac.html

6.  Once it completes scanning and recovery process, it allows you to
create a recovery session by providing an advanced feature called
“Save Recovery Session”.
 Henceforth, once you purchase the complete version of this
software, you do not have to perform rescanning of your
unmountable Mac hard drive. Instead, you are facilitated to
continue with the saved recovery session by using “Open Recovery
Session” button.
 With the help of universal binary application, this software
supports both Intel and PowerPC Mac platforms.
http://www.osxfilerecovery.com/from-unmountable-drive-mac.html

7.  Apart from unmountable Mac hard drive data recovery, this
application also supports data recovery from lost or accidentally
deleted Mac Volumes.
 Permanently deleted or lost files after formatting Mac hard drive
can also be restored using this software.
 This application is compatible over different versions of Mac OS X
including Yosemite, Mountain Lion, Mavericks, Snow Leopard, etc.
 It is capable of retrieving almost all types of files that include
documents, photos, videos, music files, operating system files,
application files, PDF files, and many more with great ease.
 By utilizing this utility, you can even restore files from external hard
drive on PowerPC platform and Intel based systems with ease.
 SATA, IDE, SCSI, PATA hard drives can be recovered using this
application.
http://www.osxfilerecovery.com/from-unmountable-drive-mac.html

8. Step 1: Install the software in your computer by logging in as system administrator and
use “Recover Volumes/Drives” option which is provided in once you run the application.
Figure A. Main Screen
http://www.osxfilerecovery.com/from-unmountable-drive-mac.html

9. Step 2: From the next screen of the tool click on “Partition Recovery” and proceed for
the scanning process to get back your valuable data from the drive.
Figure B. Hard Drive Selection
http://www.osxfilerecovery.com/from-unmountable-drive-mac.html

10. Step 3: Preview the files before saving them on the safer place which is available to the
host operating system user.
Figure C. Preview Window
http://www.osxfilerecovery.com/from-unmountable-drive-mac.html

11. http://www.osxfilerecovery.com/from-unmountable-drive-mac.html