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Recently my sister asked me to reinstall the macOS Loftier Sierra on her iMac considering information technology stopped working correctly. I thought that it would be like shooting fish in a barrel to do but I was mistaken. I successfully installed the macOS Mountain Panthera leo (when using the NetBoot it automatically selects the version of macOS with which the iMac was shipped with). But then I was facing multiple issues trying to update macOS from Mount Lion to Loftier Sierra via the Mac App Shop.

After downloading a re-create of macOS High Sierra from the Mac App Store, I started installing the update. The Mac rebooted, and it seemed that everything was going well, just information technology was not. The progress bar did non motility at all, or moved very slowly. I waited a few hours…

I began to effigy out what was going on and found out the following. Attempting to download macOS High Sierra from the Mac App Shop I found that a minor nineteen MB version of the "Install macOS High Sierra.app" file downloads to the "Applications" binder, rather than the consummate 5.2 GB installer file. That'due south the problem.

The tiny nineteen MB incomplete installer requires an internet connection during usage to download the rest of the Loftier Sierra update files. Additionally, it does not allow me to create a macOS High Sierra USB installer drive for use on multiple computers.

I've found a new workaround, and in this tutorial, I'll evidence you how to download the consummate "Install macOS Loftier Sierra.app" file from Apple server using the "macOS High Sierra Patcher" app instead of via the Mac App Store.

Virtually the app

In this workaround, we're going to use the macOS High Sierra Patcher app from the dosdude1.com. This app is intended for those with unsupported Macs and Hackintosh users, but any Mac user tin can utilise the app to exist able to download the consummate macOS Mojave installer file from Apple tree server. For our purposes in this particular walkthrough, nosotros volition employ the app simply to download the consummate installer file.

Notation! This method relies on a third party app from an unverified third party source. If yous are not comfortable with using unvetted and unverified software, do non follow this process.

Permit'due south brainstorm

Downloading the complete "Install macOS High Sierra.app" file from Apple tree server using the "macOS High Sierra Patcher" app is a really easy process. At present, stride by pace guide.

Go to the official website of the "macOS High Sierra Patcher" app here and download the app.

Launch the "macOS Loftier Sierra Patcher" app.

Notation! By default, macOS preventing apps from unidentified developers or sources from being launched. And so yous most likely will get an alert message that says: "macOS Loftier Sierra Patcher.app can't be opened because it is from an unidentified developer". To permit just ane specific app to run do the following:

  1. Agree down the Control key and click the app icon. From the contextual menu cull Open.
  2. A popup will announced asking you to confirm this action. Click the Open button.

Ignore everything nigh patching, instead pull downwardly the "Tools" carte du jour and choose "Download macOS High Sierra…".

How to download a complete macOS High Sierra installer app

Confirm that you want to download the "Install macOS High Sierra.app" file, and then point it to a location to save on the hard drive.

Close the "macOS Loftier Sierra Patcher" app when the download is complete and locate the "Install macOS Loftier Sierra.app" file you downloaded.

Conclusion

That'due south information technology, you're done. Now you have the consummate "Install macOS High Sierra.app" file downloaded. Then unproblematic isn't it?

You can confirm that you have the complete "Install macOS High Sierra.app" file by getting info on the file. For this simply select the file and click the Spacebar key (or right-click on the file and choose "Get Info"). The complete installer should exist effectually 5.2 GB rather than the tiny nineteen MB incomplete installer that requires additional downloads.

How to download a complete macOS High Sierra installer app

Note! Call up, the "Install macOS High Sierra.app" file deletes itself automatically after macOS High Sierra has successfully installed. Therefore, you may desire to make a fill-in by having previously copied it to external storage.

Permit me know in the comments section if you know another way to download the complete "Install macOS High Sierra.app" file rather than the tiny incomplete installer.

I promise this article has helped yous learn how to downloaded the complete "Install macOS High Sierra.app" file from Apple tree server. If this article has helped you then please leave a comment :smiley:

Thanks for reading!