1. Lost Hard Drive Data after Installing OS X Mavericks?
Tags: recover lost hard drive data, data loss after upgrading to Mac OS X 10.9, data recovery
software, mac data recovery
Once Apple Inc. releases new version for Mac OS X, Mac users will update it in no time. However,
some Mac users are reporting that their hard drives are experiencing data loss after/when Mac
OS 10.9 (Mavericks) installed.
What is Mavericks?
OS X Mavericks (version 10.9) released on OCT.22, 2013 is the tenth major release of OS X,
Apple Inc.’s desktop and server operating system for Mac computers. Also, everyone can get a
free update through the Mac App Store. With OS X Mavericks, you’ll benefit a lot from the new
apps/features added. Your computer will perform better while less power needed.
Data loss with Mavericks
In spite of the advance of OS X Mavericks, there’re still some risks while upgrading an OS. Data
loss is the most serious issue. Even Mavericks cannot avoid this problem. Many customers
complained that their WD external hard drives encountered data loss due to corruption. Also,
some scenarios happened because of accidental deletion, virus attack, etc. Challenging as the
situations, there’re various solutions for data loss on Mac. With the growing sophistication of IT
technology, people even with little technical skills can recover data by themselves with powerful
data recovery tools.
Why lost data can be restored?
People tend to think that data will disappear immediately after data get lost/deleted. Actually,
the files are just marked as inaccessible data by system. You cannot find the file name, file entry.
The fact about lost data is that they are still saved in the drive till they’re totally overwritten by
new data. The first thing you need to do immediately is disconnecting the drive to your
computer, because system may write new things to the drive automatically.The more you
attempt to write to the drive, the less chance is for data recovery.
Recover lost files with Mac OS X 10.9 data recovery software

2. As Imentioned that there’re many reliable and easy-to-use data recovery tools in the marketing.
Hence, it isn’t difficult to restore data. Free data recovery(Softtote Free Data Recovery for Mac)
or commercial file recovery tools? It depends on you. Just find a suitable one with good review,
powerful function.
Basic steps to perform Mac data recovery
#1 Download and install file recovery app. (NOT in the drive or computer from which data lost.)
#2 Select a recovery module to scan.
#3 Preview and recover.
#4 Save recovered files. (Prepare a second drive with enough capacity previously to store them.)
Anyway, you’d better create a cloned backup of your hard drive just in case something goes
wrong while upgrading.