matthewfrey is correct - you cannot repartition free space if it is not a contiguous block. iDefrag is a good choice, Drive Genius is another option. Using Carbon Copy Cloner or SuperDuper to clone the drive out and back is actually the best choice - faster, more efficient, and free. (plus you have a bootable backup, just in case)
asle is also correct in that OS X does not require forced defragmentation of the primary drive under normal operation (unlike Windows). OS X maintains proper fragmentation levels on the boot volume all on its own. In fact, you can make your system run SLOWER by defragging the boot volume!
Repartitioning a drive for Boot Camp is NOT a normal operation, however.
Defragmentation is widely recommended for external volumes used for video data storage - you want large continuous block of free space in order to prevent dropped frames.
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Dear Friends As Far As I Know Mac Itself Defrag It Drives You Can Clean Your Mac Computer Using Simple Steps Follow https://goo.gl/YT3sMw . See If This Helps
crwdns2934271:0crwdnd2934271:0 Martham crwdne2934271:0
I used iDefrag, and it worked fine. It not only cleared space for Boot Camp, but significantly improved the performance of my old (2009) MacBook Pro.
crwdns2934271:0crwdnd2934271:0 Robert Prentice crwdne2934271:0
First, before diving into list of programs, note, you should never use these programs on a Mac with an SSD. Otherwise, you can damage your disk and the system.
Apps for disk defrag:
- iDefrag is the most popular app. It costs $32 but provides a trial period.
- Drive Genius is a more powerful program, which allows you to perform a full range of preventive actions, work with HD partitions and restore the data. The price is $99.
- TechTool Pro 5 is a universal tool for Mac performance optimization, which has a defragmentation option as well. TechTool Pro 5 costs $ 98.
Resource - https://nektony.com/blog/how-to-defragme...
crwdns2934271:0crwdnd2934271:0 starka crwdne2934271:0