Upgrade To Catalina From High Sierra

Whether you want to create macOS High Sierra ISO file for installing macOS High Sierra on VMware or installing macOS High Sierra on VirtualBox or any other reason, we’ve completely made it ready to do. While there are two methods to install macOS High Sierra on Windows, first install macOS High Sierra on VMware and next install macOS High Sierra on VirtualBox. We’ve also provided macOS High Sierra DMG file. Now these two ways split into two other ways to install High Sierra on Windows.

After the Mac reboots, try to install the macOS Catalina, Mojave, High Sierra again. If the installation get stuck when you try to update the Mac from Mac App Store, you may download macOS software from Apple website, which is the Combo updater which includes all the files required to update the macOS. MacOS Catalina Download 10.15 ISO Direct Links (2021 Update) March 5, 2021 4 Mins Read This post will guide you to Quickly Get macOS Catalina Download 10.15 ISO from three different sources.

That’s the same installing High Sierra on VMware and installing High Sierra on VirtualBox but these ways hugely differ from the first which includes its files and steps. Like we install High Sierra on VMware in the first method with High Sierra VMware & VirtualBox Image. For installing High Sierra this time, we’ll need a macOS High Sierra ISO file. Here’s how to Create macOS High Sierra ISO File.

  • Related:Install macOS High Sierra on VirtualBox on macOS Catalina on Mac

There are two different ways to obtain macOS High Sierra ISO, first, create macOS High Sierra ISO file, second, download macOS High Sierra ISO, so we’ve prepared and shown it step by step beforehand.

MacOS Catalina, macOS Mojave, and macOS High Sierra download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. If you're using OS X El Capitan v10.11.5 or later and your App Store preferences or Software Update preferences are set to download new updates when available, macOS Big Sur will download conveniently in the background, making it even easier to upgrade. A notification will inform you when macOS Big Sur is ready to be installed. Click Install to. Apple fixed the vulnerability in Big Sur 11.2.1, Catalina 10.15.7 and Mojave 10.14.6, but did not fix High Sierra and dropped support for that version. Software vendors have quickly followed suit and no longer support products on High Sierra which includes Microsoft Office 365 and Adobe CC 2021.

macOS High Sierra

For creating macOS High Sierra ISO, we’ll need a few things. First, a macOS running on a virtual machine or an actual Mac and second a reliable internet connection for downloading macOS High Sierra from the App Store which will be then converted to ISO. If you’re one of those users who have these services in hand, we could likely show how to Create macOS High Sierra ISO file. This could be probably done on High Sierra installed on VMware or VirtualBox which is similar to it. From downloading High Sierra to converting it into ISO, we’ll show it thoroughly in a step by step instructions tutorial. Here’s how to Create a macOS High Sierra ISO file.

How to Create macOS High Sierra ISO File

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Just like we’ve created macOS Catalina ISO file and also provided macOS Catalina ISO file for VMware & VirtualBox, we’ll continue on how to create macOS High Sierra ISO file. This High Sierra file will definitely work for installing macOS High Sierra on VMWare and VirtualBox for the new method and even can be used for other purposes but we recommend using this method for educational purposes only.

This process can be done on any macOS version like macOS Mojave, macOS Catalina or previous or newer version, so we’ve done it on macOS Catalina, it works super fine.

Step One – Download macOS High Sierra From App Store

As High Sierra is officially on the App Store and also its the latest version, we’ll need to download it first. Crack parallels desktop 15 for mac.

Go ahead and navigate to the High Sierra link, and click on Get.

After it will end up loading, it will pop up this window. Click on Download.

The downloading will begin a moment, so just wait. Since it’s about 7GB, it will take some while, so have a rest.

Step Two – Apply Commands on Terminal

When the High Sierra finished, it will pop up in the apps list.

Upgrade To Catalina From High Sierra

Now open up Terminal from the Spotlight.

Now copy and paste the commands by line.

Upgrade To Catalina From High Sierra

  • Create a High Sierra DMG Image
  • Mount DMG image to macOS
  • Use the Createinstallmedia Tool to create a macOS High Sierra Installer
  • Unmount Disk image
  • Convert DMG File to ISO file

Hackintosh Upgrade To Catalina From High Sierra

  • Rename and Mojave Image file to Desktop

The macOS High Sierra ISO should be successfully created and there should be no problem. If there’s a problem or a command doesn’t respond, try entering it once more. Here’s how it looks like.

Now you can copy it simply by dragging and dropping into the Windows.

Step Three – Install macOS High Sierra on VMware or VirtualBox

Once its with you, you can definitely start installing macOS High Sierra on VMware or install High Sierra on VirtualBox on Windows PC. Here’s how to use it and install macOS High Sierra on Windows with complete steps.

Upgrade To Catalina From High Sierra

That ends up with installing High Sierra. If there’s something you would like to add or tell us, we’re happy to hear that.

macOS installation problem happens all the time. After downloading the macOS installer, you try to install the macOS Catalina/Mojave, macOS Sierra or High Sierra but the installation get stuck. The progress bar has been stuck at 40% or something, showing: 'Installation is in progress. Calculating time remaining..'

If your macOS update also get stuck at 'Installation is in progress. Calculating time remaining..' Here shows you how to confirm if the installation is still going on and how to complete the update successfully.

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1.Check If the Install is Still Going on

Sometimes, it just takes a very long time for you MacBook or iMac to install the macOS Sierra or High Sierra update. So it doesn't necessarily mean that the macOS installation is frozen when the Mac stay at “20 minutes remaining” for two hours. And forcing restarting a Mac during OS installation may cause data loss. Therefore, before taking further action, press Command + L , which will open the log file and shows you if the installation is still going on and the amount of time left.

If you confirm that the installation is frozen, try the following methods to fix.

2. Force Restart Your Mac

Hold down the power button to power off the Mac. Then restart the Mac. After the Mac reboots, try to install the macOS Catalina, Mojave, High Sierra again.

Upgrade To Catalina From High Sierra

If the installation get stuck when you try to update the Mac from Mac App Store, you may download macOS software from Apple website, which is the Combo updater which includes all the files required to update the macOS.

3. Install macOS in Safe Mode

Another way to install Catalina, Mojave, Sierra or High Sierra successfully is to install the macOS in safe mode. To get your Mac into Safe mode:

As you Mac start up, hold down the Shift key until the Apple logo appears.When you Mac is in Safe mode, go to App Store and get the High Sierra update.

4. Reset the NVRAM

If the Sierra or High Sierra installation is still won't complete in Safe mode, you can try to reset the NVRAM. NVRAM is a memory section on your Mac that store data like volume settings, screen resolution.

To reset the NVRAM on Mac, restart Mac and hold down Command + Option + P + R.The Mac will restart with options in NVRAM resetting. Now try to update your Mac.

5. Reinstall macOS in Recovery Mode

This will help you to install macOS Sierra or High Sierra and newer versions, without data loss.

  • Restart your mac and hold down the Command + R to boot your Mac into Recovery mode.

  • Click Disk Utility and choose First Aid for your startup drive.

  • Restart the Mac again when this time, press Command + Option + R to get your Mac in Internet Recovery mode.

  • Choose Install a new copy of MAC OS and wait for the installation to complete.

If you have a Time Machine backup, restore your Mac from the backup in Recovery mode. After the restoration, try to install the macOS again.

6. Clean Install from External Drive

If none of the above methods work for your Mac, you can try to clean install the macOS Sierra or High Sierra from external drive. Here is the complete guide of how to clean install macOS High Sierra on Mac.

7. Recover Mac Files When Catalina/Mojave/High Sierra Installation Is Stuck

After fixing the frozen macOS installation issue, you may found some files missing on your Mac. If so, you can use FonePaw Data Recovery to recover the deleted data from Mac. The program can restore the missing documents, photos and more from hard drive, SD card, USB drive on Mac and Windows PC. Download the Mac version of FonePaw Data Recovery to have a try.

DownloadDownload

Step 1. Run the program.

Step 2. Select one or all categories: photos, videos, audio, documents, email or others. Then select the hard drive of your Mac. Click Scan.

Step 3. Once the scanning is stopped, you can view the deleted files and choose the needed one to recover to your Mac.

Should i upgrade to catalina from high sierra

If the macOS installation on your Mac is still stuck or frozen, describe the problem below.