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6 Safe Ways to Fix macOS Sierra Download and Install Problems

By updating to the latest macOS Sierra, you can get rid of certain glitches easily. However, many people have problems while downloading or installing the new Apple update. The total macOS Sierra update time varies from 45 minutes to 2 hours. If you cannot update Mac to the latest version for hours, then there must be something wrong.

To troubleshoot macOS Sierra download and install problems, this article collects common Mac update problems and related solutions. Just read and check if you encounter the same Mac installation error.

Fix macOS Sierra Download and Install Problems

1Not Enough Storage Space for macOS Sierra Update

Your Mac computer will freeze or run slowly due to the lack of enough running space. The maximum macOS Sierra update requires 8GB free storage space. If you want to get good performance, you need to leave at least 15GB storage space on Mac. You can delete large files or use third-party Mac cleaning software to solve the problem.

free up mac storage space

2This Version of macOS Cannot Be Installed on This Computer

The macOS installation couldn’t be completed issue may be caused by the incompatibility issue. To troubleshoot macOS Sierra fail to install problems, you need to upgrade your Mac to the late 2010 and newer versions first.

udpate mac

3macOS Could Not Be Installed on Your Computer

It means the macOS Sierra update file is corrupted or interrupted. You need to delete the damaged Mac update file named Install macOS Sierra from Launchpad. Reboot your Mac to bypass other potential problems. Later, you can re-download the latest update file to troubleshoot macOS Sierra problems.

mac could not be installed on computer

4macOS Sierra Cannot Be Installed on (null)

The macOS Sierra update fails when it is almost complete in a few seconds. It is quite disappointing when you receive the notification after long-time waiting. During this time, you have to restart your computer before installing. It should be the universal solution to troubleshoot macOS Sierra download and install problems, as well as other computer issues.

macos sierra cannot be isntalled on null

5macOS Sierra Is Downloaded but Cannot Be Installed

Sometimes you may find that macOS Sierra update does not display in the Updates section. There is no available Update option after downloading Mac update files. In some situations, the macOS Sierra update is downloaded to the hard disk. You can head to the Application folder to find it. Later, you can install macOS Sierra successfully.

install macos update in application folder

6macOS Sierra Installation Stuck or Failed

Here are some general fixes to troubleshoot macOS Sierra update stuck or failed problems. If the macOS Sierra installation process does not respond for a long time, you can do as the following paragraphs tell.

  1. Uninstall antivirus software to reinstall macOS Sierra update.
  2. Hold and press Power and Shift keys to troubleshoot macOS Sierra installation stuck issues.
  3. Switch to a hardwired connection.
  4. Download and install macOS Sierra update in Safe Mode.
  5. Speed up your computer by turning off display effects and optimizing Mac storage.

7Recover Lost Data After macOS Sierra Update

If you haven’t backed up Mac files with Time Machine, you can run FoneLab Data Retriever to recover lost Mac data smartly. There is no need to recover from the entire Mac backup. You can scan, preview and recover any file on Mac without backup, both deleted and existing files are supported.

Fortunately, the Mac data recovery software still works under macOS Sierra update failure, deletion, formatted partition, RAW hard drive and many other crashed problems. Thus, you can even recover Mac files before fixing macOS Sierra download and install problems.

data retriever screenshot

FoneLab Data Retriever

FoneLab Data Retriever - recover the lost/deleted data from computer, hard drive, flash drive, memory card, digital camera and more.

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  1. Support macOS Sierra data recovery from system update failure, deletion, disk format, virus infection and many other problems.
  2. Recover lost photos, videos, music, documents, emails and more in various formats.
  3. Detect your disappeared Mac files via Quick Scan and Deep Scan modes.
  4. Work with Mac 10.7 and above versions (macOS Mojave included).
launch mac file recovery

These are all proven ways to troubleshoot macOS Sierra download and install problems. You can update to the latest macOS Sierra version without data loss easily here. If the Mac won’t update problem still exist, you can feel free to contact us.

You are also read about fix Macbook Pro shuts down randomly, recover Mac data external hard drive read-only, USB flash drive not showing up on Mac.

Lisa

March 15, 2019 09:00 / Posted by

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