Lost Ones Mac OS

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.

A list of all Mac OS X versions

Apr 27, 2021 One important note: You cannot restore a file to the same drive where it was lost. So, if you deleted a file off an external drive, you’ll need to save it onto a separate drive or your Mac’s startup disk and vice versa. The reason for this is to prevent further data loss. Limitations of Stellar Free Edition. MacMost Now 455: Reinstalling Lost Mac Applications If you have accidentally deleted an essential Mac application, like TextEdit, Preview, iCal, Address Book or the QuickTime Player, you can get it back without reinstalling your entire system. The packages for these files are on your Mac OS X installation disks. Find lost passwords using Keychain Access. In case you’ve lost one of your internet logins or don’t remember the password to your WiFi, it’s very likely that you can recover it using your Mac’s native password manager — Keychain Access. To recover a password with Keychain Access: Launch the utility from your Applications folder. Restoring lost or deleted volumes on Mac OS X system is now made easy with the best volume recovery software for Mac. No matter whether it is an HFS/HFS+/APFS volume and how it is lost or deleted; just recover your volumes in a few simple steps.

We’ll be repeatedly referring to these Apple OS versions below, so it’s good to know the basic macOS timeline.

Cheetah 10.0Puma 10.1Jaguar 10.2
Panther 10.3Tiger 10.4Leopard 10.5
Snow Leopard 10.6Lion 10.7Mountain Lion 10.8
Mavericks 10.9Yosemite 10.10El Capitan 10.11
Sierra 10.12High Sierra 10.13Mojave 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

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:

  1. Click the App Store icon.
  2. Click Purchases in the top menu.
  3. Scroll down to find the preferred OS X version.
  4. 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.

Lost Ones Mac Os 11

Mac os download

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.

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.

Mac Os Mojave

STEP 3. Install older OS X onto an external drive

The following method allows you to download Mac OS X Lion, Mountain Lion, and Mavericks.

  1. Start your Mac holding down Command + R.
  2. Prepare a clean external drive (at least 10 GB of storage).
  3. Within OS X Utilities, choose Reinstall OS X.
  4. Select external drive as a source.
  5. 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.

Mac Os Download

  1. Boot your Mac from your standard drive.
  2. Connect the external drive.
  3. 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.

by Jill, updated on 2016-02-19 to Mac Data Recovery

Data Loss When Install or Reinstall Mac OS X Operating System

  • I reinstall my OS X 10.8 operating system on my crashed Mac Mini, but some files are gone after reinstallation. How can I recover those lost files?
  • I install OS X 10.10 on my new Mac, after installation, I delete some photos, how can I recover them?
  • When I reinstall OS X on my Mac, all the files are overwritten by the new system. Is it possible to get them back?
  • I reinstall OS X on my old Mac with new macOS 10.15 version. After reinstallation all my documents are lost, can you tell me how to recover those lost data.

If you are facing data loss problem after reinstallation of OS X, finding the right solution to recover lost data after reinstalling OS X on Mac is the key to get your data back. If you have backups with Time Machine or Backup software, you can restore your files by extracting backups. If you never back up your files, you still have the chance of recovery your data. In this article, we will guide you to recover lost data after reinstalling OS X on Mac with data recovery software.

You don’t have to try a lot of solutions to check if they can help you recover lost data after reinstallation, here is the effective solution to recover lost data after reinstalling OS X on Mac. Do Your Data Recovery for Mac Professional is one of the most Mac data recovery software that can recover lost data from almost any kind of disaster. It is very simple to use. After losing your data, just download and install it on your Mac, then run it to scan your hard drive to find lost data.

Three Steps to Recover Lost Data after Reinstalling OS X on Mac

Step 1: Select the file types you want to recover.

If you want to recover specific file types, just select them to get a more focus scanning result. Otherwise, the software will scan your hard drive and find all types of lost files.


Step 2: Select the hard drive to scan.

Select the hard drive where you lose your files to start scanning. Do Your Data Recovery for Mac Professional offers two recovery modes to scan your Mac hard drive. In most cases, try quick recovery mode at first. If you can’t find your files after quick scan, try advanced recovery mode to deeply scan your hard drive.


Step 3: Preview and recover files.

After scanning, all the recoverable files will be listed on the software interface and they are well organized in three ways: Path, Time, File Type. That just lets you quickly find what you want. Before you saving the files on your Mac, you can preview the documents, photos and videos etc to check their quality and detail information.


After losing data due to reinstalling your OS X, just install Do Your Data Recovery for Mac Professional as soon as possible. It will help you safely and completely recover lost data after reinstalling OS X on Mac. Try it now.

Related Articles

NO.1 Mac data recovery software to recover deleted, formatted or lost files from Mac hard drive or storage media.

Hot Articles