1. Disk Utility fails to resize Mac partition? Try Stellar Partition Manager

2. Why Disk Utility fails to Resize Partition? Some reasons explained:  A part of hard drive is not recognized by the OS X.  Minor logical corruption to the structure of the disk may create hassle in resizing the disk.  Physical damage to the disk also create hurdles in disk resizing.  Malware/Trojan attack on disk may fail resizing.

3. An Instance: Disk Utility failing to Resize in below screenshot.

4.  In the above screenshot, Disk Utility resizes the OS X startup drive but again pulls back the partition to original location, leaving at least 20-50GB of free spaces as unused.  This may be caused by the incorrect file format to which some space on the drive has allocated to.  Corruption on the part of the disk spaces can’t be ruled out.  Any malicious threat may have also compromised the situation.

5. Resizing the drive in Recovery Mode:  In such instances, user must switch to Recovery Mode and try running Disk Utility. To run into Recovery Mode, follow below steps: 1.Restart Mac 2.Press-Hole Command + R to bring Recovery Mode window. 3.Select Disk Utility 4.Go to Partition tab & try resizing disk.

6. Recovery Mode: May help & May Not  The Disk Utility in Recovery Mode is as same as the Desktop one. It might not be of major help if the level of corruption on OS X hard drive is severe.  Still, minor disk issues may be resolved in the Recovery Mode which would help us resize the disk.  Otherwise, one has to opt out other options to get the resizing done successfully.

7. Stellar Partition Manager  We checked out Stellar Partition Manager utility for Mac OS X and decided to give it a shot so as to resize our troubled Mac disk.  This Mac partition tool resizes, creates, deletes, hides HFS partitions.  The only drawback of the software is, it doesn’t support Boot Camp partition. But sooner than later, we are going to see Boot Camp resizing included in this tool.

8. Working of Stellar Partition Manager  Create Boot DVD.  Since, we have to work on the OS X startup drive, it is necessary to first create a boot disk in order to boot the Mac with the DVD so that our main hard drive becomes a secondary partition.  Stellar Partition Manager prompts to create the image of the OS X drive which can be burn to a DVD using Disk Utility.  Once the boot DVD is made, restart the Mac OS X and press hold OPTION key before the Apple Logo appears. This will bring in Drive Selection menu. Select the Boot DVD to start Mac OS X.

10. Select Boot DVD from Menu

11.  The bootable DVD created by Stellar Partition Manager not only creates the image of the OS X drive but also bundles itself so that user can start managing Mac partitions with this tool

12. Stellar Partition Manager starts in Bootable environment

13. Resizing Done – Process Completed

14. Compare with Slide - 3 OS X startup disk has successfully taken the allocated spaces.

15. Overview of Stellar Partition Manager  Summary  Tool creates bootable dvd.  Resizes, creates, deletes an OS X partition in bootable environment.  Hides & Reveals a partition.  Roll back a partition to it’s previous state.  Visit Site - http://www.stellarinfo.com/mac- software/partition-mac/partition-mac-drive.php Visit Site  ******************Really Stellar******************