This Copy Of Macos Sierra Is Damaged


Apr 09, 2018 hello, i followed the guide for installing high sierra and when i choose the install mac os it give me pop up 'this copy of the install macos high sierra application is damaged and can‘t be used to install mac os'. Class OSISSystemInfo is implemented in both /Volumes/Image Volume/Install macOS High

  • Nov 15, 2019 How to use the Terminal to change the date in the macOS installer: In the menu bar, click “Utilities” and select Terminal; You can view the set date using the command: date. In order to change it, you need to add the date to the date command in the format: mmddHHMMyy. Date mmddHHMMyy. Mm – month (01-12); dd – date (01-31).
  • MacOS High Sierra. MacOS 10.13 High Sierra is the fourteenth version of macOS, and the follow up to macOS Sierra.
  • This copy of the Install macOS application is damaged, and can't be used to install macOS. I have validated that i have enough RAM and diskspace when download happens. More than 3 GB RAM and 35 GB disk space is available. MacBook Pro (Retina, 13-inch, Mid 2014) 2.6 GHz Intel Core i5.

Why is macOS High Sierra damaged?

As first reported by, a fix is quite simple. The cause of this error is an expired certificate, and because the certificate is expired, the “Install macOS” app for Mojave, Sierra, and High Sierra will not run. Fortunately, there is a fairly simple solution to the “damaged” installer problem.

How do you fix this copy of the install macOS High Sierra application is damaged?

All you have to do is correct it then retry the installation.

  1. Step 1: Check whether you have the same issue. Open the terminal.
  2. Step 2: Check the date and time using the date command. …
  3. Step 3: Update the date and time of your machine using the date command. …
  4. Step 4: Quit terminal.
  5. Step 5: Retry the installation.

How do I fix my High Sierra Mac?

Additional Steps to Fix macOS High Sierra Needs To Repair Your Library

  1. Go to the Apple icon in the top left corner of your screen and choose Restart from the menu.
  2. Hold both Command and R keys to enter Recovery Mode. …
  3. Select Reinstall macOS.
  4. Choose your hard drive, usually MacintoshHD (or whatever you named your drive)

1 нояб. 2017 г.

How do I fix my High Sierra install?

To fix the macOS High Sierra problem where the installation fails due to low disk space, restart your Mac and press CTL + R while it’s booting to enter the Recover menu. Select ‘Disk boot’ to boot normally, then remove any files you no longer need.

Why is macOS Sierra not installing?

macOS Sierra problems: Not enough space to install

If you get an error message while installing macOS Sierra saying that you don’t have enough hard drive space, then restart your Mac and boot into safe mode. … Then restart your Mac and try to install macOS Sierra again.

Is High Sierra better than Mojave?

If you’re a fan of dark mode, then you may well want to upgrade to Mojave. If you’re an iPhone or iPad user, then you may want to consider Mojave for the increased compatibility with iOS. If you plan to run a lot of older programs that don’t have 64-bit versions, then High Sierra is probably the right choice.

How do I manually install macOS High Sierra?

How to Perform a Clean Install of macOS High Sierra

  1. Step 1: Backup Your Mac. As noted, we’re going to completely erase everything on the Mac. …
  2. Step 2: Create a Bootable macOS High Sierra Installer. …
  3. Step 3: Erase and Reformat the Mac’s Boot Drive. …
  4. Step 4: Install macOS High Sierra. …
  5. Step 5: Restore Data, Files and Apps.

4 окт. 2017 г.

How do I get an older version of OSX?

How to download older Mac OS X versions via the App Store

  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.

29 нояб. 2017 г.

Where can I download macOS High Sierra installer?

How to Download the Full “Install macOS High Sierra. app” Application

  • Go to here and download the High Sierra patcher application*
  • Launch “MacOS High Sierra Patcher” and ignore everything about patching, instead pull down the “Tools” menu and choose “Download MacOS High Sierra”

27 сент. 2017 г.

How do I quit the installer on my Mac?

Press Cmd-Alt-Esc or go to the Apple menu and choose Force Quit. Select the App Store app and confirm you want to force quit.

How long does it take for macOS High Sierra to install?


This is the last screen you will see before the macOS High Sierra install finishes. The macOS High Sierra installation time should take about 30 to 45 minutes to complete if everything works right.

Can High Sierra download?

Yes, Mac OS High Sierra is still available to download. I can also be downloaded as an update from the Mac App Store and as an installation file. Compatibility is very similar to Mac OS Sierra and requires a Mac from late 2009. There are newer versions of the OS available too, with a security update for 10.13.

How do I reinstall OSX High Sierra from USB?

Create a bootable macOS installer

  1. Download macOS High Sierra from the App Store. …
  2. When it’s finished, the installer will launch. …
  3. Plug in the USB stick and launch Disk Utilities. …
  4. Click the Erase tab and make sure Mac OS Extended (Journaled) is selected in the format tab.
  5. Give the USB stick a name, then click Erase.

25 сент. 2017 г.

What to do when macOS won’t install?

What to Do When the macOS Installation Couldn’t Be Completed

  1. Restart Your Mac and Retry the Installation. …
  2. Set Your Mac to the Correct Date and Time. …
  3. Create Enough Free Space for macOS to Install. …
  4. Download a New Copy of the macOS Installer. …
  5. Reset the PRAM and NVRAM. …
  6. Run First Aid on Your Startup Disk.

This Copy Of Macos Sierra Is Damaged By Heat

3 февр. 2020 г.

Is my Mac too old to update?

Apple said that would run happily on a late 2009 or later MacBook or iMac, or a 2010 or later MacBook Air, MacBook Pro, Mac mini or Mac Pro. If you Mac is supported read: How to update to Big Sur. This means that if your Mac is older than 2012 it won’t officially be able to run Catalina or Mojave.

Related posts:

    Question: Is macOS High Sierra still supported?
    Is macOS High Sierra secure?
    Is macOS High Sierra the latest version?
    Quick Answer: Is macOS Sierra the same as High Sierra?
    Frequent question: Is macOS High Sierra better than Sierra?
    What is macOS High Sierra app?

As a Windows user, there may be times when you need to use macOS but don’t have the money to invest in your own Mac computer. Apple has always made it hard to install their operating system on non-Apple hardware, making it hard to take advantage of the benefits of this refined OS. APFS is the default file system in macOS, iOS, watchOS, and tvOS. APFS replaces HFS+ as the default file system for iOS 10.3 and later, and macOS High Sierra and later. MacOS additionally supports a variety of other formats, as described in Supported File Systems. In this case, you need to repair the PDF application to solve the problem. Here are the two most common means to fix a damaged PDF application. Download Up-to-Date Application. First, uninstall the current version of Adobe Acrobat, then download and install the latest version of Adobe Acrobat/Reader on your computer.

17 January 2020

Is your Mac backed up?

If so, how often?

Is it a file backup or a clone?

How To Fix This Copy Of The Install Macos Mojave Application Is Damaged

Is it backed up to the cloud or to an external drive?

What Mac backup software are you using?

How do you restore it if you need to?

Do you know these answers?

These might sound like silly questions, but you’ll be amazed to find out that only 6% of adult computer owners in the US backup their data every day! 34% do it at least once a month, 42% do it once a year or less, and 24% never back up their computers!

Where do you fit in?

What are the best practices for backing up your Mac?

What backup software for Mac should you use?

In this article, we’ll answer those questions.


Do I Really Need to Back Up My Mac?

This Copy Of Macos Sierra Is Damaged

Yes, you do - if you value what’s on it.

Although hard drives and solid-state drives (SSDs) are more reliable than ever, things still go wrong. Even if your hard drive doesn’t break down, you might lose your Mac, it could be stolen, or it could be damaged or destroyed in some unforeseeable event.

It might not happen tomorrow, next week, or even next year. In fact, it may never happen to you.

But the reality is that it could happen at any time - and it does to many people.

If that were the case, what would the loss of all your data mean to you?

If your data isn’t backed up, there would be nothing to do except kick yourself for failing to do what you knew all along - to back up your data.

So don’t let that happen to you!

Back it up.

Go! Do it now!

How Many Backups Do I Need?

At least two.

Ideally, you should have both a local backup and an off-site or online backup to the cloud.

A local backup is where you copy the data from your Mac to an external hard drive. Both copies are in the same place so you can easily access the data, keep it up-to-date, or restore it if you have to.

This Copy Of The Install Macos Sierra Application Is Damaged

The only problem with a local backup is that it’s probably in the same physical location as your Mac. If something happens to your Mac during a robbery, fire, flood, other natural disasters, or ransomware attack, the additional copy may also be affected. Moreover, the backup hard drive can also fail.

That’s why it’s best to keep both a local backup and an online backup in the cloud.

Should I Use File Backup or Cloning?

Both backup methods have advantages.

A file backup backs up each of your files individually. That makes it easy to restore a single file if you - by accident - permanently delete a single file or need to restore a previous version.

The advantage of cloning is that it makes an exact copy of your Mac’s hard drive at the bit level. If anything happens to your Mac, you can boot directly from the backup clone and carry on working without having first to replace your hard drive and restore your data.

This Copy Of The Install Macos High Sierra Application Is Damaged Virtualbox

As a best practice, you should keep both a file backup and a clone of your Mac.


Does My Mac Come with Backup Software?

Yes, it does.

Time Machine is macOS’ built-in software. All you need is an external hard drive to get started.

Easy to use, Time Machine is a “set-it-and-forget-it” experience. By default, it copies everything on your Mac - your accounts, applications, documents, email messages, movies, music, photos, preferences, and system files.

Time Machine also keeps multiple versions of each file. Any time a file is changed, Time Machine backs it up, allowing you to choose which specific version of the data to restore. Moreover, if you delete a file, Time Machine will keep a copy for a while.

Once you’ve set it up, you can literally forget all about it. All you need to do is make sure the external backup hard drive is at least twice the size of your internal hard drive and always attached to store the backups. The larger the drive, the more backups it can save.

How Do I Set Up Time Machine?

To set up Time Machine, all you have to do is buy an external hard drive and plug it into your Mac. As soon as you do, macOS will show a dialog box requesting confirmation that you want to use that drive with Time Machine, and ask whether to encrypt the backup disk or not.

When you choose Use as Backup Disk, Time Machine starts backing up all of your data. The process could take several hours, depending on the number of files and type of drive. Subsequent backups will be much faster since only changed files are backed up.

Time Machine backs up all files by default. Should you only wish to back up specific files or directories, you can choose which ones to exclude in System Preferences.

For more information on backing up your Mac, see the article Back up your Mac with Time Machine.

How Often Does Time Machine Back Up My Data?

Time Machine runs every hour. If for some reason, your Mac is asleep or the external hard drive cannot be reached, Time Machine will reinitiate the backup as soon as it can. As long as the backup hard drive can be found, Time Machine will take care of your data.

This Copy Of The Install Macos High Sierra Application Is Damaged Vmware

Why Do I Need Another Backup Software for My Mac?

While Time Machine is fast and easy to use, it’s not perfect.

Moreover, Time Machine does not include the ability to clone your entire drive. If you need to get up and running fast and don’t have time to replace and restore a failed drive, you’ll want to have another bootable backup in addition to Time Machine.

What is the Best Backup Software for Mac?

Here are the top five backup applications that MacUpdate readers rave about:

SuperDuper! is easy to use with a well-designed, intuitive interface. You select the target and destination drives, and SuperDuper! will start backing up your data. It clones your Mac’s hard drive, so you always have a complete backup of all your data.

After the initial full backup, you can choose incremental backups that only copies new files or those that have been changed since the last backup. You can also select which files you want to back up and which ones you don’t.

This Copy Of The Install Macos High Sierra Application Is Damaged Hackintosh

This Copy Of Mac Os Sierra Is Damaged Usb

SuperDuper! includes a Smart Wake feature - without turning on the screen to ensure your Mac is always backed up regardless of whether it’s awake or not when the backup starts.

This Copy Of Macos Sierra Is Damaged By Viruses

  • MacUpdate User Rating: 4.9
  • Version Reviewed: 3.3
  • System Requirements: macOS 10.10 (Yosemite) or higher and supports both APFS and HFS+ volumes.
  • Licensing: $27.95 for one Mac.
  • Read MacUpdate user reviews of SuperDuper! for Mac.

Carbon Copy Cloner is a simple cloning tool that backs up your internal hard drive at the bit level. You can boot off the backup disc or clone and install a new drive. The application allows you to choose which files and folders to clone, and supports incremental backups with its Smart Updates feature.

  • MacUpdate User Rating: 4.8
  • Version Reviewed: 5.1.14
  • System Requirements: macOS 10.10 (Yosemite) or higher.
  • Licensing: $39.99 for all computers within a household. A free 30-day trial is available.
  • Read MacUpdate user reviews of Carbon Copy Cloner for Mac.

This Copy Of Macos Sierra Is Damaged By Fire

Rather than only being a backup tool, ChronoSync includes both backup and synchronization capabilities. It allows you to backup - including bootable backups - to almost any external device or service, including iPads, iPhones, Windows PCs, and some cloud services.

ChronoSync Express provides entry-level synchronization and backup for only $24.99, but lacks the enhanced features that ChronoSync offers.

  • MacUpdate User Rating: 4.7
  • Version Reviewed: 4.9.7
  • System Requirements: OS X 10.12 (Sierra) or higher.
  • Licensing: $39.99 on sale. Usual price $59.98.
  • Read MacUpdate user reviews of ChronoSync for Mac.

An easy to use utility, SmartBackup uses a custom synchronization engine with enhancedfeatures to improve performance. It allows you to choose which folders or volumes to sync, along with the ability to create a bootable clone of your internal hard drive.

Supporting a range of different configurations, SmartBackup allows you to archive changed or deleted files, choose multiple destinations, or exclude specific files or folders. Built-in automation enables you to schedule backups quickly.

  • MacUpdate User Rating: 4.0
  • Version Reviewed: 4.2
  • System Requirements: OS X 10.10 (Yosemite) or higher.
  • Licensing: Free.
  • Read MacUpdate user reviews of SmartBackup for Mac.

Disk Drill is a powerful data recovery tool that allows you to scan your Mac - or other devices connected to your Mac - for deleted or corrupt files or partitions. Once the scan is complete, the Preview feature allows you to see which items were recoverable.

While the free version shows you what can be recovered, you need to purchase the Pro version to actually recover them.

  • MacUpdate User Rating: 3.7
  • Version Reviewed: 3.8.953
  • System Requirements: OS X 10.8.5 (Mountain Lion) or higher.
  • Licensing: Free for the basic version or $89.00 for the Pro version.
  • Read MacUpdate user reviews of Disk Drill for Mac.

The Bottom Line

Backing up your Mac is not an option. It’s a necessity.

This Copy Of The Install Macos High Sierra Application Is Damaged Fix

All it takes is three simple steps:

  1. Purchase an external drive and set up Time Machine - today!
  2. Choose the right backup app to clone and/or synchronize your Mac.
  3. Check your backups regularly to verify you can read and restore from them.

Save yourself the headache and stress. Back it up - now.