MacOS Catalina is the latest Mac Computer Operating system released by Apple Inc. To install macOS Catalina on any Mac Computer or Mac Laptop you need to download the macOS Catalina DMG File. Which is free to download from Apple official website, but for that, you need to have a developer account. Download Mac OS Catalina 10.15 ISO & DMG Image. August 14, 2020; macOS Catalina 10.15; 7 Comments; The latest macOS released by Apple is the Mac OS Catalina. It is the sixteenth release from them. It was released on the 7th of October in 2019. It has Support Links. File Password Product Key Request Software File.
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So, you’ve decided to download an older version of Mac OS X. There are many reasons that could point you to this radical decision. To begin with, some of your apps may not be working properly (or simply crash) on newer operating systems. Also, you may have noticed your Mac’s performance went down right after the last update. Finally, if you want to run a parallel copy of Mac OS X on a virtual machine, you too will need a working installation file of an older Mac OS X. Further down we’ll explain where to get one and what problems you may face down the road.
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A list of all Mac OS X versions
We’ll be repeatedly referring to these Apple OS versions below, so it’s good to know the basic macOS timeline.
Cheetah 10.0 | Puma 10.1 | Jaguar 10.2 |
Panther 10.3 | Tiger 10.4 | Leopard 10.5 |
Snow Leopard 10.6 | Lion 10.7 | Mountain Lion 10.8 |
Mavericks 10.9 | Yosemite 10.10 | El Capitan 10.11 |
Sierra 10.12 | High Sierra 10.13 | Mojave 10.14 |
Catalina 10.15 |
STEP 1. Prepare your Mac for installation
Given your Mac isn’t new and is filled with data, you will probably need enough free space on your Mac. This includes not just space for the OS itself but also space for other applications and your user data. One more argument is that the free space on your disk translates into virtual memory so your apps have “fuel” to operate on. The chart below tells you how much free space is needed.
Note, that it is recommended that you install OS on a clean drive. Next, you will need enough disk space available, for example, to create Recovery Partition. Here are some ideas to free up space on your drive:
- Uninstall large unused apps
- Empty Trash Bin and Downloads
- Locate the biggest files on your computer:
Go to Finder > All My Files > Arrange by size
Then you can move your space hoggers onto an external drive or a cloud storage.
If you aren’t comfortable with cleaning the Mac manually, there are some nice automatic “room cleaners”. Our favorite is CleanMyMac as it’s most simple to use of all. It deletes system junk, old broken apps, and the rest of hidden junk on your drive.
Download CleanMyMac for OS 10.4 - 10.8 (free version)
Download CleanMyMac for OS 10.9 (free version)
Download CleanMyMac for OS 10.10 - 10.14 (free version)
STEP 2. Get a copy of Mac OS X download
How to make a dmg fiel automatically run a file. Normally, it is assumed that updating OS is a one-way road. That’s why going back to a past Apple OS version is problematic. The main challenge is to download the OS installation file itself, because your Mac may already be running a newer version. If you succeed in downloading the OS installation, your next step is to create a bootable USB or DVD and then reinstall the OS on your computer.
How to download older Mac OS X versions via the App Store
If you once had purchased an old version of Mac OS X from the App Store, open it and go to the Purchased tab. There you’ll find all the installers you can download. However, it doesn’t always work that way. The purchased section lists only those operating systems that you had downloaded in the past. But here is the path to check it:
- Click the App Store icon.
- Click Purchases in the top menu.
- Scroll down to find the preferred OS X version.
- Click Download.
This method allows you to download Mavericks and Yosemite by logging with your Apple ID — only if you previously downloaded them from the Mac App Store.
Without App Store: Download Mac OS version as Apple Developer
If you are signed with an Apple Developer account, you can get access to products that are no longer listed on the App Store. If you desperately need a lower OS X version build, consider creating a new Developer account among other options. The membership cost is $99/year and provides a bunch of perks unavailable to ordinary users.
Nevertheless, keep in mind that if you visit developer.apple.com/downloads, you can only find 10.3-10.6 OS X operating systems there. Newer versions are not available because starting Mac OS X Snow Leopard 10.7, the App Store has become the only source of updating Apple OS versions.
Purchase an older version of Mac operating system
You can purchase a boxed or email version of past Mac OS X directly from Apple. Both will cost you around $20. For the reason of being rather antiquated, Snow Leopard and earlier Apple versions can only be installed from DVD.
Buy a boxed edition of Snow Leopard 10.6
Get an email copy of Lion 10.7
Get an email copy of Mountain Lion 10.8
The email edition comes with a special download code you can use for the Mac App Store. Note, that to install the Lion or Mountain Lion, your Mac needs to be running Snow Leopard so you can install the newer OS on top of it.
How to get macOS El Capitan download
If you are wondering if you can run El Capitan on an older Mac, rejoice as it’s possible too. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. So, here are main steps you should take:
1. Install Snow Leopard from install DVD.
2. Update to 10.6.8 using Software Update.
3. Download El Capitan here.
“I can’t download an old version of Mac OS X”
If you have a newer Mac, there is no physical option to install Mac OS versions older than your current Mac model. For instance, if your MacBook was released in 2014, don’t expect it to run any OS released prior of that time, because older Apple OS versions simply do not include hardware drivers for your Mac.
How to convert dmg to exe. But as it often happens, workarounds are possible. There is still a chance to download the installation file if you have an access to a Mac (or virtual machine) running that operating system. For example, to get an installer for Lion, you may ask a friend who has Lion-operated Mac or, once again, set up a virtual machine running Lion. Then you will need to prepare an external drive to download the installation file using OS X Utilities.
After you’ve completed the download, the installer should launch automatically, but you can click Cancel and copy the file you need. Below is the detailed instruction how to do it.
STEP 3. Install older OS X onto an external drive
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The following method allows you to download Mac OS X Lion, Mountain Lion, and Mavericks.
- Start your Mac holding down Command + R.
- Prepare a clean external drive (at least 10 GB of storage).
- Within OS X Utilities, choose Reinstall OS X.
- Select external drive as a source.
- Enter your Apple ID.
Now the OS should start downloading automatically onto the external drive. After the download is complete, your Mac will prompt you to do a restart, but at this point, you should completely shut it down. Now that the installation file is “captured” onto your external drive, you can reinstall the OS, this time running the file on your Mac.
- Boot your Mac from your standard drive.
- Connect the external drive.
- Go to external drive > OS X Install Data.
Locate InstallESD.dmg disk image file — this is the file you need to reinstall Lion OS X. The same steps are valid for Mountain Lion and Mavericks.
How to downgrade a Mac running later macOS versions
If your Mac runs macOS Sierra 10.12 or macOS High Sierra 10.13, it is possible to revert it to the previous system if you are not satisfied with the experience. You can do it either with Time Machine or by creating a bootable USB or external drive.
Instruction to downgrade from macOS Sierra
Instruction to downgrade from macOS High Sierra
Instruction to downgrade from macOS Mojave
Instruction to downgrade from macOS Catalina
Before you do it, the best advice is to back your Mac up so your most important files stay intact. In addition to that, it makes sense to clean up your Mac from old system junk files and application leftovers. The easiest way to do it is to run CleanMyMac X on your machine (download it for free here).
Visit your local Apple Store to download older OS X version
If none of the options to get older OS X worked, pay a visit to nearest local Apple Store. They should have image installations going back to OS Leopard and earlier. You can also ask their assistance to create a bootable USB drive with the installation file. So here you are. We hope this article has helped you to download an old version of Mac OS X. Below are a few more links you may find interesting.
These might also interest you:
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Fixed screen saver, as well as addressed mail problems in this release, are also made. Additionally, there is the reliability of Xsan, the transfer of huge files across an Ethernet, authentication of the Open Directory Server and many other changes to enable the system to deliver better network performance. Security vulnerabilities also exist in the areas discovered by the following: Installer, Kernel, IPSec, Mobile Device Management, PHP, PostgreSQL, OpenSSL, Power Management, Screen Lock, QuickTime, and kudos: Apache, Certificate Trust Policy, Bind, ClamAV, ImageIO, CoreGraphics, and others. On final notes, the stable and best operating system is Mac OS X Mountain Lion 10.8.5.
Likewise, the one among the most popular features held in the “Dictation,” a voice transcript that lets you speak in the field provided and get your wanted text written and then is translated into different languages (subject to your own) through the server. What was new to Mountain Lion is the theme of hundreds of features, whereas we want to highlight some of the striking ones: the improved promise on safety and privacy, which fulfills the need to “Disable automatic login” and allow applications to be downloaded from the official Apple store or from the “identified developer.”
OS X 10.8 Mountain Lion is Mac’s most recent OS for Apple. It brings OS X much closer to iOS when it comes to features and iPad and iPhone synchronization. We have already described the major changes in Mountain Lion, most of which are features taken from iOS. We will take a closer look at Mountain Lion’s features here. It includes all features and updates for the OSX 10.8.2 Mountain Lion plus system-specific enhancing and fixing of the late 2012 systems. The updated Apple OS X Mountain Lion is recommended for all 13″MacBook Pro with a retina display, 21.5 “iMac (late 2012) and Mac mini (late 2012) systems. you can also check out the Mac OS X Snow Leopard DMG.
Features Of Mac OS X Mountain Lion 10.8.5
- Auto-save to access previously saved part/version of content.
- AirPlay Mirroring to stream the media you desire.
- Improved notification center.
- Game center was being introduced.
- No way to get malware in action, while Gatekeeper is awake.
- Safari latest was being added with Chrome like browsing.
- The iCloud library is there to provide you a substantial place to get your important data saved.
- Automated application updating facility.
- Integration of Twitter with mail contacts and publishing to other social media, directly.
- Power Nap to put Mac in action, while in sleep mode.
- A stable operating system for your Apple device
- Various security enhancements and issues fixes
- Better performance of MacBook Air
- fixes for Smart Card and screen saver issues
- AFP file transfer performance over 802.11
- Sending huge data over the ethernet
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Mac OS X Mountain Lion DMG Technical Setup Details
- Software Full Name: Mac OS X Mountain Lion
- Setup File Name: Mac_OS_X_Mountain_Lion_10_8_5_Official.iso
- Full Setup Size: 4.2 GB
- Setup Type: Offline Installer / Full Standalone Setup
- Compatibility Architecture: 32 Bit (x86) / 64 Bit (x64)
- Latest Version Release Added On: 24th Mar 2019
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System Requirements For Mac OS X Mountain Lion
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- 8 GB free HDD
- 2GB RAM
- Core 2 Duo Intel Processor
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In this article, I’ve listed the download links for downloading the macOS Catalina ISO image. macOS Catalina was released in Worldwide Developer Conference (WWDC19). The latest version of this OS is macOS Catalina 10.15.5 (19F101). Apple has released there new OS, macOS Big Sur on WWDC20. If you want to try and test macOS Big Sur, follow how to install macOS Big Sur on VMware or how to install macOS Big Sur on VirtualBox guides.
Apple has announced Apple Podcast, TV, and Music app on macOS Catalina operating system. The Dark Mode, which is another most wanted feature that thousands of Mac users were waiting for, was released in the earlier version of Mac OS “Mojave 10.14”. Now it’s also available in macOS Catalina 10.15. There were many other features that you can read on Apple.com.
If you want to install macOS Catalina using VMDK image, you can Download macOS Catalina VMDK for VMWare & VirtualBox.
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Related: Install macOS Catalina on VMware -Windows
Warning: All the content of this site is copyright protected. If anything from this website is copied somewhere, the website link must be mentioned. Otherwise, the targeted website who copied the content will be reported to corresponding copyright law or at least some search engines like Google, Bing. This ISO image is created only for testing & educational purposes, so the miss-use of the image is not tolerated and it’s not our responsibility.
Related: Install macOS Catalina on VirtualBox -Windows
Conclusion
After reading this piece of information, you should have downloaded macOS Catalina ISO Image. The ISO file which is linked for download in this post is up to date and currently the latest version of macOS Catalina.
If you’ve any suggestions or any topics that you want us to cover in the next article, please let us know in the comment section below this post.