Summary

1. Meanwhile, El Capitan, which has been out for over a year and is still being supported, is currently tied with Sierra at one third of the Mac market share, and Yosemite is in third place at just over one-fifth of the active installed base. All older versions of OS X, though, together comprise more than 14.1% of the Internet-using Mac installed.
2. Oct 07, 2019  Mac Pro introduced in mid 2010 or later. To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu. If your Mac isn't compatible with macOS High Sierra, the installer will let you know.
3. After downloading macOS Sierra it doesn't appear in the Updates section of the App Store app. Instead it is downloaded to your disk and usually can be found in /Applications. If you have downloaded a public beta or a developer beta and moved it to a different folder previously, it may reside there instead.
4. Oct 24, 2019  For example, I have a collection of MacOS installers including for Mac OS X Snow Leopard, Mac OS X Mavericks, MacOS High Sierra, macOS Sierra, macOS Mojave, and MacOS Catalina. These can be used to build USB boot installers, restore systems, troubleshoot, perform clean installations of the various system software versions, perform upgrades to.
5. Sep 12, 2017  The Metal 2 framework will make it possible for developers to create virtual reality games and macOS High Sierra will make playing virtual reality games on Mac a reality. The iMac with 5K Retina display and the iMac Pro will natively support VR. Plus, thanks to macOS High Sierra, you'll be able to add an external GPU seamlessly and play VR games.

Mac fails to boot or start after the macOS update. Whatever is preventing your Mac from starting up, follow these 5 simple solutions to get it working again. If you have data loss problem after macOS update, EaseUS Data Recovery Wizard for Mac provides tried-and-true data recovery service to you.

Install VMware Fusion on your Mac. Download Mojave or High Sierra from App Store. Don’t open the app, close it. Create a new VMware machine using the OS you have just downloaded. Select the installation file and wait for it to be fully installed on your virtual machine. Download a copy of Carbon Copy Cloner on the virtual machine.

This page covers 5 fixes for Mac won't boot or start issue after macOS Catalina, Sierra or older macOS update issue. If you are with this issue, follow to make your Mac computer work now:

macOS has now been updated to 10.15, and many Mac users are trying to upgrade to the newest version. While for most it’s a usual pleasurable experience, for some this update had downsides. Some users complain that their Mac computers won't boot after installing new macOS Catalina. When Mac fails, it usually can't boot or start up properly. If you are faced with this situation, the most important thing should be recovering data from the unbootable Mac because:

• Your attempts to fix the Mac not booting issue may write new data on this Mac, which will overwrite the old data and make it irrecoverable.
• Recovering data before the complex fixes can avoid data loss.

EaseUS Mac data recovery software is able to recover data from unbootable Macs after update. It creates a bootable media that enables you to recover data from Mac hard drive (If you only have one Mac). What's more, it recovers data from failed internal Mac hard drive, APFS boot drive, and unmountable APFS boot volume, etc. If you have two Mac devices, take out the hard drive and connect it to the other Mac. Download EaseUS Data Recovery Wizard for Mac on that Mac device, and recover data from the hard drive.

Then, you can read on and Fix the 'Mac won't boot after update' issue after you have successfully got data from the drive.

1. Reset the PRAM / NVRAM

3d drafting software for mac early 2000s. NVRAM refers to special memory sections on your Mac that store data that persists even when the Mac is shut off, such as volume settings and screen resolution. Resetting that data isn't harmful! In some cases, after performing this step, your Mac will restart normally.

• Restart your Mac
• Hold down all of these keys: 'Command', 'Option', 'P' and 'R', and turn on the Mac. (It's the same keys to reset the PRAM).
• Keep holding the keys down until you hear the Mac restart again.

You may see a progress bar on startup. If the progress bar fills up and then the Mac starts up, you're probably good to go. If not, reset SMC.

2. Reset the SMC

In some situations, you may need to reset your Mac's SMC (System Management Controller).

• Shut the Mac down.
• Unplug all cables.
• Wait for a few minutes.
• Plug the cables back in and start up the Mac.

If you've got a Mac desktop, unplug it for 15 seconds and then plug it in and after five seconds press the power button.

3. Boot Mac in Safe Mode

Safe Mode is a stripped-down version of the Mac operating system that can be useful if you are trying to troubleshoot issues with your Mac.

• Start your Mac, press and hold the 'Shift' key, and make sure your Mac has at least 9 GB of free space.
• When the login window appears to release the shift key and log in. You may be required to log in twice if you have FileVault turned on. Then restart the device.

Wait patiently till Mac computer finish the reboot process.

4. Run Disk Utility in Recovery Mode

If your Mac is booting but the operating system isn't loading up, you may have a corrupted drive. Luckily it is possible to fix this in Recovery Mode. In Recovery Mode you can restore from a Time Machine backup, use Disk Utility to verify and repair connected drives, check your internet connection, get help online using Safari, and install or reinstall macOS.

• Make sure the Mac is off. If it's stuck on a grey, blue or white screen, just hold down Mac's power button for several seconds until it shuts off.
• Hold down the 'Command' and 'R' keys, and power the Mac back up again. Keep pressing 'Cmd' + 'R' while your Mac is booting up.
• Once your Mac starts in Recovery Mode you can have access to 'Utilities'. Click 'Disk Utility', locate the icon for your Mac's drive, and click 'Verify Disk'.

5. Reinstall macOS Catalina/Sierra

The last method to fix macOS Catalina or Sierra fails to boot after update error is to reinstall macOS. Original package contents for mail app on mac.

• You can download wanted macOS Catalina/Sierra and create a bootable USB drive to clean install macOS Catalina/Sierra on your computer again.
• You can also boot into Recovery mode (Solution 4), and then click to install the latest OS and follow the onscreen prompts. Our article on resetting a Mac to factory settings has more information on reinstalling macOS.

If your Mac does not respond after trying these tips, contact Apple Support or a certified Apple Repair Center. It’s likely there is a problem with your logic board or other internal hardware.

Jun 08, 2020 • Filed to: Solve Mac Problems • Proven solutions

This is one of the many queries that we have received lately from our macOS users. While macOS is certainly one of the most secure and popular operating systems globally, it does have some pitfalls. For instance, there are times when users are not able to install certain macOS updates. A while back, my own macOS Sierra installation was stuck and I had to reset Mac manually. If your macOS Sierra won’t install or you face the same problem with other versions, then don’t worry. In this guide, we will teach what to do when macOS could not be installed on your computer.

Why macOS Could Not Be Installed on Your Computer?

Before we discuss ways to fix macOS could not be installed, it is important to understand the reasons behind it. Following are some of the common problems associated with this unwanted situation.

• Make sure there is enough free space on the system to complete the installation.
• The problem may arise if you are trying to install a pirated or corrupt version of the operating system
• There might be some clash with the existing OS or software profile on the computer.
• A network setting could block the installation or download of the update from its server.
• The bootstrap program or the boot-loading settings could have been compromised.
• There could be some problem with the default date and time of the system.
• If the system already has multiple users, then there might be some problem with the installation.
• The storage unit of the system could be corrupt, insufficient, or infected by a virus.

Method 1. Restart and Reinstall Mac

Sometimes, the simplest of the solutions can fix even the most critical issues with macOS installation. In case if macOS could not be installed, then try to restart your system once. Afterward, reinstall the operating system and try to fix this problem. If you are lucky, then this simple fix would be able to resolve the macOS installation problem seamlessly.

1. Firstly, you need to restart your system. If you are already using it, then just go to the main menu and click on the “Restart” button.
2. In case if the system is not responding, then you can press and hold the Power button forcefully to turn it off. Press it again to turn on Mac.
3. As you would hear the startup chime on Mac, press the Command + R keys at the same time. Keep holding them until your system boots in the recovery mode.
4. This will launch the macOS Utilities window on the screen. Just click on “Reinstall macOS” option and follow the simple on-screen instructions to complete the installation.

Method 2. Check Mac Date & Time

This is a rookie mistake that a lot of people make while installing macOS update on their computer. If your system’s default date and time are wrong, then it can clash with the latest update. For instance, some updates would check the present date and time to ensure that the system would yield compatible results or not. Here’s a quick method to do the same and fix macOS Sierra won’t install problem. It can also fix the same issue for other macOS versions too.

1. Simply click on the Apple menu on the top-left corner of the screen and visit System Preferences > Date & Time.
2. This will open the Date & Time settings on your system. Here, you can manually set the present date and time on your Mac or can enable the automatic feature as well.
3. There is also a section for “Time Zone” here, so that you can select the relevant timezone for your location.
4. To make further changes, you can click on the “Open Language & Region” feature from here.
5. Now, specify the region you belong to or switch the calendar you follow. We recommend keeping the Georgian calendar for its universal appeal.

Method 3. Free Up Mac Space

If your Mac system is running low on storage, then you might encounter a similar issue as well. Before you install a new macOS update, make sure that there is free space on the system. In this way, the system can download the update without any trouble and take the needed actions.

1. To check Mac storage, go to the Apple menu from the top and click on “About This Mac”.
2. A dedicated window will open with details about the system. Go the “Storage” tab from here to view details about the partitions and Mac storage.
3. Here, you can view what kind of data (photos, videos, backup, etc.) has occupied space on Mac’s storage.
4. Subsequently, you can get rid of any unwanted data from your Mac. Just select any file and move it to Trash. Afterward, you can empty the trash as well.
5. Make sure that you remove cache and temporary files too. There are also tons of third-party tools that can help you make more space on your Mac.

Method 4. Reset the NVRAM

NVRAM is the non-volatile segment of RAM in a computer that stores vital information related to its booting, OS, and other components. Sometimes, a stored detail in NVRAM can clash with the installer, making macOS could not be installed on your computer. To fix this, you can take these steps and reset the NVRAM on your Mac.

1. Firstly, restart your system the way you like. If it is not responding, then long-press the Power button and wait for it to turn off. Afterward, press it again and restart it.
2. Now, press the Command + Option + P + R keys at the same time as soon as the system would start.
3. Keep holding them for a while (at least 10 seconds) and let them go once you hear the startup chime again. This would automatically reset the NVRAM on your Mac.

Method 4. Reset the NVRAM

NVRAM is the non-volatile segment of RAM in a computer that stores vital information related to its booting, OS, and other components. Sometimes, a stored detail in NVRAM can clash with the installer, making macOS could not be installed on your computer. To fix this, you can take these steps and reset the NVRAM on your Mac.

1. Firstly, restart your system the way you like. If it is not responding, then long-press the Power button and wait for it to turn off. Afterward, press it again and restart it.
2. Now, press the Command + Option + P + R keys at the same time as soon as the system would start.
3. Keep holding them for a while (at least 10 seconds) and let them go once you hear the startup chime again. This would automatically reset the NVRAM on your Mac.

Method 5. Run First Aid on Mac’s Disk

In case if there is a problem with Mac’s storage itself, then it can also halt the installation in between. To resolve the macOS could not be installed due to this problem, take the assistance of its Disk Utility. It is an inbuilt feature in Mac that can help you repair its storage or any partition in no time.

1. If your Mac is already running, then you can go to its Applications > Utilities > Disk Utility to open it.
2. Another way to access it is via Mac’s Recovery Mode. Just restart Mac and press Command + R keys during the startup process. From the available macOS Utilities, click on “Disk Utility”.
3. This will launch a dedicated section with details about the Mac’s internal hard drive and its partition. You can select the storage unit from the left panel and view its details on the right.
4. Now, click on the “First Aid” option on the toolbar to repair the disk and confirm your choice by clicking on the “Run” button again.
5. This will start repairing the selected disk on your Mac, so that you can move past macOS Sierra installation stuck.

Method 6. Use Single User Mode

A lot of Mac users end up creating multiple accounts that can backfire during the installation process. One of the best ways to resolve this is by booting your system in single user mode. This will open its Unix Shell, letting you directly pass the needed commands to the system. Here’s how you can also fix macOS could not be installed on your computer problem via single user mode.

1. To start with, turn on your system. If it is already on, then you can restart it.
2. Hold the Command + S keys while it turns on for a few seconds. This will boot your Mac in a single user mode with a Unix Shell screen.
3. Once it is done, use the File System Check (fsck) command to scan the directory and repair it. Ideally, type the “fsck –fy” command and press enter.
4. Mac will automatically scan the storage unit and would try to repair it. In the end, you can just type the “exit” command and restart Mac in the normal mode.

Method 7. Create a Bootable Installer

If there is a serious issue with your system, then you can consider this approach. While it is a bit complicated and time-consuming, it will most-likely fix macOS could not be installed problem. In this, we will take the assistance of an external source (like USB drive) to create a bootable media. Later, we will take its assistance to install macOS on the system. To fix macOS could not be installed on your computer, follow these steps:

1. To begin with, download the macOS installer on your system. You can visit its official website to do the same.
2. Once you have the installer handy, connect an external source to create bootable media. Make sure it has at least 12 GB of free storage. Also, take its backup beforehand as it would be formatted by Mac.
3. After connecting the source, go to your Mac’s Applications > Utilities and launch Terminal.
4. Now, you need to type certain commands in Terminal to create a bootable media. The exact commands would differ according to the macOS version you have.
   • For Mojave:sudo /Applications/Install macOS Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/
   • High Sierra:sudo /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/
   • For Sierra:sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/ --applicationpath /Applications/Install macOS Sierra.app
   • For El Capitan:sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/ --applicationpath /Applications/Install OS X El Capitan.app

   Here, the string should be replaced by the current volume in Mac where the installer is present.

5. Once you are done typing, press enter and confirm your choice. You would have to enter the administrator account details to authenticate the process.
6. In the end, you will be notified that the bootable media is created. Just quit the terminal and unmount the media. Later, you can take the assistance of Mac’s Startup Manager or Disk Preferences to boot it from the connected media.

Bonus Tip. Recover Data from Unbootable Mac

If your Mac has been crashed and you can’t seem to extract its data back, then don’t worry. You can take the assistance of Wondershare Recoverit Data Recovery Mac for Mac to do the same. It is a dedicated data recovery tool that allows us to extract all kinds of data from Mac’s storage. The Ultimate version of the tool can even create a bootable media. In this way, you can perform data recovery on a crashed or malfunctioning Mac. Recently, the firm has come up with the latest update of the software – Recoverit 8.0 that is equipped with tons of high-end features.

Recoverit - The Best Word File Recovery Software

• Recover Word documents from all storage devices like Mac.
• Recover 1000+ types and formats of files in different situations.
• Scan and preview the files before you recover them from MacBook hard drive.

To learn how to create a bootable media using Recoverit 8.0, simply take these basic steps:

Step 1: Select a Location

Launch the software and select the drive from where the data files are lost. If you don’t know which drive to search, tap on the “I can’t find my partition” option and hit the Start button.

Step 2: Scan the Location

Typically, the software will run an All-Around Recovery scan and search for the lost and deleted files on the entire drive.

Step 3: Preview and Recover

Mac High Sierra Cant Find Just Installed Software 2017

When the scan completes, the files will be listed on the screen. The software will sort out the files according to format to make the search easier. You can select multiple files at a time and have a preview at them.

Conclusion

Mac High Sierra Cant Find Just Installed Software Windows 10

That’s it, folks! This concludes our informative guide on how to fix macOS could not be installed. A while back, when my macOS Sierra installation was stuck, I followed the same drill and easily fixed this issue. Furthermore, if you have lost some of your important data due to a crashed Mac, then use Recoverit 8.0. The latest release of the data recovery application can create a bootable media in no time. You can take its assistance to boot a malfunctioning Mac and extract all the vital content from it seamlessly.

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