Sep 28, 2020 • Filed to: Solve Mac Problems • Proven solutions
Set up email and install popular Office apps like Word, Excel, PowerPoint, and OneNote onto your Windows Phone. For Microsoft 365 PowerPoint for Microsoft 365 Office 2019 Excel for Microsoft 365 for Mac Word for Microsoft 365 for Mac Outlook for Microsoft 365 for Mac PowerPoint for Microsoft 365 for Mac Office 2019 for Mac Excel for the web. After your Mac is shut down, press and hold the power button in order to turn on your Mac. Open the System Preferences on your Mac. Open System Preferences; Open Date & Time. Check if the date and time are the same as your current time zone. If they are not the same, click the lock to enable to make changes and enter the correct date and time. The existing app should be un-installed by going to settings- Apps.you may find the message that 'this application is not installed for this user'. Such apps can not be installed in the current user. If that is the case then, change the user/profile and then try to uninstall the app. KEXT files get added in your Mac unknowingly when third-party devices such as pen drives and others are attached to your Computer. You can resolve the issue by checking the third party extensions that are present on your Mac or Macbook. This is very easy, and you can do this by following the steps here: Open Terminal your Mac; Type the following.
'I have tried to install macOS on my system, but nothing seems to work out. Can someone tell me what to do if macOS could not be installed?'
To access Client Desktops, we have to install Citrix Receiver in our systems. Download Citrix receiver application from its official site itself. Recently one user reported the he faced an issue while installing Citrix Receiver. While installing, the citrix receiver pops up with following error, Specified Account Already Exists.
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. The following are some of the common problems associated with this unwanted situation.
Method 1. Restart and Reinstall Mac
Sometimes, the simplest of the solutions can fix even the most critical issues with macOS installation. In case of 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.
Method 2. Check Mac Date & Time
This is a rookie mistake that a lot of people make while installing macOS updates on their computers. 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 a problem. It can also fix the same issue for other macOS versions too.
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.
Mac Do Not Install App If Already Exists As AMethod 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.
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.
Related: For the operations that require a password, go there and recover the password on 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.
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.
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 a 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:
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 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 which is equipped with tons of high-end features.
Recoverit - The Best Word File Recovery Software
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
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
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 bootable media in no time. You can take its assistance to boot a malfunctioning Mac and extract all the vital content from it seamlessly.
What's Wrong with Mac
If you’re on macOS, and you’re seeing the warning saying macOS could not be installed on your computer that looks like the image above, it can be super frustrating. But there’s no need to panic. Roll your sleeves up to follow this guide to troubleshoot the problem on your Mac.
You may probably encounter this error when reinstalling your macOS, installing updates or even just turn on your Mac. And below “macOS could not be installed on your computer” you’re prompted with more details, it could be one of the followings:
The path /System/Installation/Packages/OSinstall.mpkg appears to be missing or damaged.
Storage system verify or repair failed.
An error occurred installing macOS.
An error occur while verifying firmware.
Unable to unmount volume for repair.
Whichever you’re experiencing, you’ll probably fix it with one or more methods below. Read on and find how…
Try these fixes:
Important: Before you go, remove the macOS install drive(if you insert one before) from your Mac.
Fix 1: Check the Date & Time are on Set automatically
The macOS could not be installed on your computer error is probably caused by the wrong time or date on your Mac. Follow to check the date and time on your Mac:
1) Hold down the power button to shut down your Mac. Once you do, hold down the power button to turn on your Mac.
2) On your desktop, click the System Preferences icon.
3) Click Date & Time. https://imraol.weebly.com/blog/best-goal-track-app-mac.
4) See if the date and clock match your current timezone.
If it doesn’t match, click the lock to enable to make changes. Then set the date and time to correct ones.
5) Tick on Set date and time automatically.
Then you can try to reinstall macOS or install the updates again.
Fix 2: Reset your Mac’s NVRAM
NVRAM (nonvolatile random-access memory) is a small amount of memory that your Mac uses to store settings(like start-up disk selection, time zone, display resolution and so on)and access them quickly. If the starup settings stroed in NVRAM is wrong, you might get the macOS could not be installed on your co mputer error. If this is the case, you can try to reset your Mac’s NVRAM to solve the problem.
Here’s how you can do it:
1) Hold down the power button to shut down your Mac. Once you do, hold down the power button to turn on your Mac. Immediately, hold these four keys together: Option, Command, P and R for about 20 seconds.
2) When your Mac finishes starting up, you can go to System Preferences to adjust any settings that were reset, like startup disk selection, display resolution or time zone.
Then you can try to reinstall macOS or install the updates again.
Fix 3: Restore from Time Machine backup
Screencast app free. When you macOS stuck in macOS could not be installed on your computer, you can boot your Mac into the Recovery Mode to restore from Time Machine.
Here’s how you can do it:
1) Hold down the power button to shut down your Mac. Once you do, hold down the power button to turn on your Mac. Immediately, hold down the Command key and R together. Release the button when you see the Apple logo.
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Your Mac will then boot into macOS Utilities. If it doesn’t, please try again.
2) Select your language and then click the continue button.
3) Select Restore From Time Machine Backup, then Contimue.
4) Click Continue.
5) Select Time Machine Backups, then Continue.
6) Select the most recent backup, then Continue.
Wait the restore for complete. Then check if the error still exists.
Fix 4: Run Disk Utility’s First Aid in Safe Mode
When there’s any error occurring in your Mac’s volume, you may also receive this error. You can follow this method to run the Disk Utility to check for errors and repair the volume if necessary.
See how:
1) Hold down the power button to shut down your Mac. Once you do, hold down the power button to turn on your Mac. Immediately, press the Shift key, your Mac will then boot into Safe Mode.
2) Log in the system using your credentials. You’ll see the login screen displaying with the Safe Boot character.
3) On the Home screen of your Mac, click Go, then select Utilities.
4) Double-click Disk Utility.
5) Click First Aid, then Run to start to check the volume for errors.
![]() Mac Do Not Install App If Already Exists Already
Note:
a) Choose your main HDD as the volume to be repaired if you have not only one volumes on your Mac. https://imraol.weebly.com/blog/how-to-install-office-365-apps-on-a-mac.
Mac Do Not Install App If Already Exists Without
b) Click Continue if you see the prompt saying First Aid needs to temporarily lock the boot volume.
6) First Aid will then check the volume for errors and repair the volume if necessary.
7) Once the repair has completed, rerun the macOS update program or the reinstall process and see if you get out of the error message.
If unfortunately, you tried all the above methods, but to no avail, don’t give up hope. Move onto our final solution.
![]() Fix 5: Free up storage space on your MacMac Do Not Install App If Already Exists Your Name
If there’re not enough available storage on your Mac for update, the error may also happen.
In this case, you can try to free up some storage space on your Mac.
Mac Do Not Install App If Already Exists Locked
Here are some tips you can try:
1) Delete all the files that you no longer need: you can move those files to the Trash, then empty the Trash. We highly recommend you go to the Downloads folder to look for files that you might no longer need.
2) Move your files to an external drive.
Mac Do Not Install App If Already Exists Already
3) You can also try a third-party tool to help you clean your Mac, including all the duplicated files, unneeded apps and system junks. Make sure you select the safe and green tool to scan your Mac system.
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