1. System Tools › Disk Management. Defraggler by Piriform Ltd is a popular and free to use utility that was designed to help you easily defrag specific files instead of processing the entire hard drive. Unfortunately, Defraggler for Mac is not available, therefore, you might want to try other applications that can help you with this task.
2. Smart Defrag 3 is a FREE, light, and stable disk defragment tool designed for maximum hard drive performance. Based on IObit latest disk defrag engine and 'Boot Time Disk Defrag' technology, Smart Defrag 3 not only provides defragmentation.
3. Free Mac Removable Disk Shareware and Freeware. Disk Defragmenter v.7.139 Disk Defragmenter speeds up. Apple Disk Transfer ProDOS for Mac OS X v.1.2.0 Apple.

Auslogics Disk Defrag is a compact and fast defragmenter that supports both FAT 16/32, and NTFS file systems. It is supplied with advanced optimization techniques, which will remedy your system sluggishness and crashes caused by files fragmentation.Optimizes file systemThis tool will speed up your computer and make it run more smoothly by moving system files to the faster part of the disk.

Aug 11, 2017 The reason for this is that OS X and macOS have their own built-in Apple Mac utilities that clean up fragmented files from the hard drive. Therefore, for most users it eliminates the need to perform a regular defrag. But there is an exception to every rule and in a few rare cases a defrag for Mac can make a difference. Jun 24, 2020 Note that boot drive occupying more than 80% of the total disk capacity will not work. You can reduce files by using Activity Monitor. Also, reboot the drive on completion of the process. Arrange a blank fresh external drive and clone the boot drive of your Mac OS X. You can use Mac backup software Carbon Copy Cleaner to clone the drive.

Looking for a way to install and run OS X on an external hard drive? This can be useful for a couple of different reasons. Firstly, it allows you to run another copy of OS X without needing any additional Mac computer.

Also, since you can run a full copy of OS X on the external drive, it can be used for troubleshooting purposes on other Macs or it can be as a kind of virtual OS X. I’ve already written about how you can install OS X in VMware Fusion, but that takes up space on your Mac. Using an external drive, you can save space on your Mac, though it might be a bit slower if you are using USB 2.0.

In this article, I’ll walk you through the requirements and steps to install OS X onto an external hard drive.

Format External Hard Disk

The first thing you’re going to need to do is format the external hard drive properly. The file format has to be Mac OS X Journaled and you have to use the GUID partition map. To do this, open Disk Utility and connect the drive to your Mac.

Under External in the left hand menu, click on your external hard drive and then click on the Erase button. Make sure you backup any data before you erase the drive. When you click Erase, a dialog will pop up where you can configure some options.

Give your drive a name, choose OS X Extended (Journaled) for Format and GUID Partition Map for Scheme. It should only take a minute or two for the drive to be erased and reformatted. Now your drive is ready for OS X.

Install OS X

There are two ways you can install OS X on to your external hard disk: by reinstalling OS X from the OS X Utilities repair screen or by downloading OS X from the App Store and running the installer. I’ll show you both methods in case one isn’t working for you.

The easiest way is to download OS X from the App Store. Once you open the App Store, you’ll see a link on the right for the latest version of OS X (El Capitan as of this writing).

Go ahead and click the Download button to start downloading the installer. Note that if you already have that version of OS X installed, you’ll see a popup message appear asking if you still want to continue or not. Just click Continue.

Once it has been downloaded, just double-click the installer, which will be located in the Applications folder.

Keep clicking past the license agreement, etc., until you get to the screen that asks you which disk to install OS X on. /amazon-cloud-drive-mac-os-x-client/. By default, it is set to MacBook.

Click on the Show All Disks button and you’ll see an icon for the different disks and partitions on the Mac. I named my external hard drive OS X and that shows up in the middle.

You can also tell it’s an external hard disk because it uses the icon with the orange hard drive. Click Continue and then follow the instructions to complete the installation. Note that your computer may restart during the install and you don’t have to do anything. OS X will automatically continue installing onto the external hard drive rather than booting up to your internal version of OS X.

At the end of this article, I’ll show you how to boot up to the external hard drive, so skip down if you ended up using the App Store method. Note that by default, the Mac will start booting up directly to the external hard drive until you change it.

The second method to install OS X is to restart the Mac and press and hold the COMMAND + R keys. This will load up OS X Recovery.

The OS X Utilities screen will appear and here you want to click on Reinstall OS X. Again, you’ll go through some basic screens, but when you get to the hard disk screen, click on Show All Disks again.

Using this method, you’ll have to login using your Apple ID and password so that the entire OS X installer can be downloaded off of Apple’s servers. Whichever method you choose, it will take anywhere from 15 to 30+ minutes to install OS X onto your external hard drive.

While OS X is installing, your computer will restart a couple of times. Note that when it finally boots into OS X, that is the version running off your external drive. To switch back and forth between the internal and external drive, you have to restart your computer and hold down the OPTION key.

When you do that, you should see at least four icons. In my case, I have five because I have Windows installed using Boot Camp. Anyway, the grey MacBook and Recovery 10.11.2 icons are for my internal OS X and the orange OS X and Recovery 10.11.3 are for the version installed on my external drive.

Use the arrow keys to select which drive to boot from and then simply press Enter. If you have a newer Mac and a USB drive that supports USB 3.0, everything should run fairly fast. Overall, it’s a fairly straight-forward process and took me less than an hour to get everything working. If you have any questions, feel free to comment. Enjoy!

Mac Os X Defrag External Drive Windows 7

You might be experiencing some performance issues with your Mac and you knew from your PC days about defragging computers. Well, you won’t find any command or utility to do that on Mac. The point is that the Mac File System is designed differently than Microsoft's, and it defragments files automatically. However, there are still some situations when you may need to defrag Macbook once in a few years.

In this article, we’ll tell you how to defrag a Mac, all advantages and pitfalls of doing this, and what alternatives to defragging are out there. Anxious to find out? Then let’s start!

Do you need to defragment a Mac?

First of all, let’s find out why we do a Mac disk defrag. To cut a long story short, defragmentation is aimed at boosting a computer’s performance by reorganizing the data on your drive. As a result, the related bits are grouped together and loading files and programs takes less time. Simply put, Mac defragment moves everything back in order and can greatly speed up a slow system.

However, despite the obvious advantage, a Mac running any version of OS X later than 10.2 generally doesn’t need to be defragmented. The reason for this is that OS X and macOS have their own built-in Apple Mac utilities that clean up fragmented files from the hard drive. Therefore, for most users it eliminates the need to perform a regular defrag. But there is an exception to every rule and in a few rare cases a defrag for Mac can make a difference.

When do Macs need to be defragged?

If your hard drive is more than 90 percent full, the macOS may have problems with automatic defragmentation routines. This situation is common for multimedia creators who produce plenty of large files in pro tools like Adobe Premiere, Final Cut or Photoshop.

Therefore, if you have hundreds or even thousands of large (1GB and larger) movies, audio files or creative documents, you should consider removing them to free up the storage. Another alternative is defragging a Mac.

Concerning the first option, there is a fast and safe way to remove unnecessary files from your Mac — a powerful app CleanMyMac X. It finds above 74 GB of junk on an average computer, including old and large files, app leftovers and system clutter. It helps to boost computer performance, so you probably won’t even need to defrag a Mac.

Defragment Mac

However, if you still wonder “How do I defrag my Mac?” read on. We’ve prepared all essential guidelines for you.

How to defragment a Mac

One of the simplest and most user-friendly methods of a Mac defrag is to use a trusted third-party defragmentation program. But before choosing and installing the app, make sure to back up your data. Should something go wrong, you’ll be able to easily restore all necessary files. For this purpose, you can use Time Machine, iCloud, Dropbox or any other external storage at hand.

When choosing the defragmentation app, pay a special attention to the compatibility requirements. Macs running operating systems older than OS X 10.2 are not compatible with the latest modern defragmentation software, so finding a relevant tool is challenging.

Once you’ve installed the program of your choice, open the utility and follow the instructions of a disk defragmenter for Mac. Give the process plenty of time to complete and don’t move your computer anywhere until the defragmentation is finished. Usually, you’ll need to restart your Mac as well.

Will defragmentation harm my HDD?

You may not worry: OS X defrag will not harm your HDD. As you already know, disk defragmentation can greatly speed up the traditional hard drive. It’s because HDD fragments all the data and stores it in multiple locations. And it may take quite a time to read the file with its pieces situated in different places. The procedure of arranging the data is not harmful for your HDD and is aimed at boosting the computer’s performance. And while it is not advisable to turn to such extreme measures, defragmenting a hard drive disk is a safe procedure if, of course, performed accurately.

Why you should never defrag Mac’s SSD

The process described above is applied only to the hard drives. If you have a newer Mac that comes with SSD (solid state drive), you should never defrag its data. SSDs operate in a different way to a traditional HDD and already have a built-in automatic maintenance process. Therefore, it is not necessary to defrag a solid state drive to boost a Mac’s performance.

Defrag External Drive Mac

Furthermore, all defragmentation attempts can even hurt your SSD. Flash memory used by a solid state drive has a finite lifespan because of the limited write and read cycles. And disk defragmentation is a process of reading the data from one place and writing it to another. So if you defrag SSD, you will perform thousands of write operations each time on the drive. It can speed up the degradation of a solid state drive and lead to its wear and tear. And that’s not what you need.

What are alternatives to defragment a Mac?

Defrag Mac Os

Free Disk Defragmenter For Mac Os X Download

If your Mac is running slowly, you don’t necessarily need to defrag Mac hard drive. Sometimes it’s not your HDD that’s having problems. Therefore, try some alternative methods that may help you speed up the system without disk defrag on Mac.

Repairing Disk Permissions

“Try repairing your disk permissions” is a standard Mac troubleshooting tip. Permissions are file settings that affect the ability to read, write and execute the file. And if they are no longer set correctly, software that uses the file may not work right.

In OS X Yosemite or earlier, the file permissions on a startup disk can be repaired with the help of Disk Utility. Note that beginning from OS X EI Capitan, disk permissions are automatically protected and there is no need to verify them with Disk Utility.

Disk Defragmenter Windows 7

How do I repair my Mac startup disk?

Here are the steps for optimizing your Mac:

1. Open Disk Utility (Applications > Utilities).

2. Choose your startup disk.

3. Click the First Aid tab.

4. Click Verify Disk Permissions to check permissions.

5. Click Repair Disk Permissions to repair any inconsistent permissions.

If you don’t want to repair disk permissions manually, you can easily perform the action with an utility we mentioned above — CleanMyMac X. It has the Maintenance module that will help you optimize your Mac, including verifying startup disk and repairing disk permissions. Thus, you’ll ensure that your Mac’s operating system is functioning properly. You can download CleanMyMac here.

Therefore, before defragging your Mac, try to perform the Mac disk cleanup to increase the disk speed. It’s an easy and risk-free process that will not take more than a few minutes.

General speedup tips

Defrag Mac Hard Drive

Sometimes your Mac needs a good kick-start to run smoothly. Here are some tricks to speed up your computer.

How do I improve my Mac performance?

1. Update macOS software

How To Defrag Mac Os

Try to update your software to the latest versions as it performs better than the previous ones. Usually system updates include performance and bug fixes that could be the reason of slowdowns.

2. Delete unnecessary files

Ensure that your Mac has at least 10 percent of total drive storage available at any time to perform background actions and provide enough space for temporary files, caches, and virtual memory. Once again, CleanMyMac X is a great solution for finding and removing useless and large files that take gigabytes of space on your Mac.

3. Stop programs from launching automatically

A large number of apps may launch simultaneously when you turn your Mac on. Some of them run in the background and are only visible in a menu bar, so it’s even hard to define if they’re actually running. You can stop them from loading by opening System Preferences, clicking on Users & Groups and then choosing Login Items. You’ll see a list of applications that launch during the startup. You can switch off the ones you don’t need by clicking the minus sign (-) button.

If you’re looking for some utilities that can help with all of that and even more, try Mac maintenance software like CleanMyMac X. It will optimize Mac performance safely and quickly.

We hope this article was helpful and you found the answers to all your questions here. Thanks for reading and share this article if you liked it!

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