11/19/2021 Reinstall Operating System Mac
Users are often forced to reinstall their system OS, but doing so puts the data at risk. Whether you are facing firmware issues, startup errors, malware attack, or OS corruption, deleting the OS and reinstalling it is the right choice. So, here we have a guide that would help you reinstall macOS X without losing data. And it is not just OS X, the reinstallation process for other versions can be carried out similarly as well.
At this point, the Mac should start to download the recovery files from the internet and show a status bar. When complete, it should reinstall macOS Recovery and reinstall macOS on the main partition. With an erased 2009 MacBook Pro, as Patrick has, he can’t use Internet Recovery, which will reinstall the original operating system that came with the Mac. If that had worked, you could install. Firstly, go to the main menu by clicking on the Apple icon and choose to restart your system. While the system is restarting, press the Command and R keys at the same time till your Mac enters the Recovery mode. When you get the utility window on the screen, just click on the 'Reinstall macOS' option and continue the process.
Let’s dig deeper and find out what you can do here.
Part 1. Can You Reinstall Mac OS Without Losing Data?
In general cases, when you want to reinstall mac os high Sierra without losing data, it is an easy task. The OS reinstallation process is carried from the recovery menu, and hence it doesn’t erase data from your device. However, it is not possible for everyone.
Most users don’t decide; instead, they are forced to reinstall macOS due to some issues with the macOS. The common reason why people had to reinstall OS involves:
Other issues like improper installation of macOS or corrupted version or interrupted installation will require you to carry out the process again. In such scenarios, your device data will be at risk. Therefore, we recommend creating a backup of your data so that you can restore it later.
Part 2: Preparations To Reinstall Mac OS Sierra
If you want to know how to perform Mac reinstall os without losing data, then you need to make several preparations for it. The crucial things you need to consider are given here.
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After you’ve taken care of the above things, it’ll be easier to reinstall OS X, Sierra, High Sierra, and other versions as well.
Part 3. Guide to Reinstall OS X Without Losing Data
We have narrowed down the steps you need to follow. Be careful, and you’ll be able to save your data from getting lost.
Step 1. Backup Files on Mac
As you proceed to reinstall Mac OS X without losing data, the first step is backing up the data. There are many ways you can choose to backup Mac data such as iCloud, Time Machine, Google Drive, OneDrive, Dropbox, or using external hard drive. Here, we’ll focus on backing up data using Time Machine.
Step 2. Start up from macOS Recovery
Now, the next step is booting Mac in recovery mode. The Mac Recovery Mode will provide you the module for reinstalling macOS.
Carry out the steps carefully as the system guides you and stay connected to fast internet. One minute detail to pay attention to is that if you want to upgrade your current macOS version, then you need to press Option + R key combination.
Step 3. Reinstall macOS Without Losing Data
In this step, we’ll focus on the part where you can reinstall macOS Sierra without losing data. There is a basic drill that you have to follow for reinstallation, but choosing the right options will ensure that the data doesn’t get erased.
And that’s all you need to do for a safe and secure macOS reinstallation.
FAQs about Reinstall Mac OS1. What does reinstall macOS mean?
Reinstalling macOS means starting your system with a clean copy of the Operating System, wiping out any malware/bugs/viruses and fix system problems as well.
2. How to recover lost data after reinstalling macOS?
If you’ve accidentally erased your Mac data during reinstallation, then we recommend using UltFone Mac Data Recovery. The main features of the software involve data recovery from Mac-based storage devices. As the software is built with the latest technology, it guarantees 100% recovery and supports all file types.
Get your hands on UltFone Mac Data Recovery and use the guide below to retrieve every single bit of data.
The recovery will finish up in a while, depending on the amount of data, and you’ll have everything back as it was.
3: How To Erase Mac Hard Drive?
Unless reinstalling macOS without losing data is your concern, you can carry out the process in a usual way. Many users choose to erase Mac Hard drive in such conditions. Do it by following the steps below.
Select the drive and hit the Erase button to delete all data from your system.
A Last Word
That’s it on how to reinstall macOS without losing any data. We hope that this article comes in handy when you want to reinstall OS on your Mac without erasing everything. And just in case, if the data gets deleted, you’ll still have the support for UltFone Mac Data Recovery.
Summary: This page is about how to reinstall macOS in macOS Recovery mode. Based on if you want to keep the original data on the startup disk, you can either choose to clean reinstall macOS or to reinstall macOS without data loss.
Reinstalling macOS gives your Mac a fresh start especially when you are frequently bothered by some issues, such as Mac not booting up, Mac hanging on the beach ball, apps frozen on your Mac, slow performance, or pink screen on Mac. Most of the time, such issue results from some system-level problems, while reinstalling macOS can easily save your life.
• How to reinstall macOS on an M1 Mac?
How to reinstall macOS from macOS Recovery mode?
When you need to reinstall macOS on your Mac, macOS Recovery mode makes this process easy and quick. By the way, if you want to learn more about macOS Recovery mode, you can watch this video.
To reinstall macOS in macOS Recovery mode:
Step 1: Make sure your Mac is connected to a stable Internet within all the following steps.
Step 2: Identify it's an Intel or M1 Mac, and immediately do one of the followings.
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• How to Boot into & Use M1 Mac Recovery Mode
Step 3: Release these keys when you see an Apple logo, spinning globe, or the Utilities window.
Step 4: Enter the requested password if you are prompted to enter a firmware password or the administrator's login password.
• Recover/reset your forgotten Mac password
Step 5: Decide if you want to clean install the system, or just reinstall macOS without losing your original data.
If you want to factory reset the Mac for selling or giveaway, or the startup disk becomes corrupted, you might want to erase the startup disk before reinstallation. This guarantees a fresh and clean installation as it wipes all your personal data on the disk.
• How to factory reset your Mac?
Animal crossing rules. • How to reset your M1 Mac to factory settings?
If you only want to reinstall macOS because the original operating system is not working as you expect, you might want to keep your personal data intact. In case files are deleted or lost by accident during macOS reinstallation, you should have a backup of your data or getting files off first.
• How to get files off when Mac is not turning on?
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Step 6: Either after erasing the startup disk or getting files off the Mac, you can then go back to macOS Utilities and choose Reinstall macOS.
Step 7: Follow the on-screen instructions and choose a disk to reinstall the OS.
Reinstall Operating System Mac Os
Other ways to install macOSReinstall Mac Os Over Corrupt System
Apart from reinstalling macOS from macOS Recovery mode, you have other options according to your situations.
Format And Reinstall On Imac
Whatever your situation of reinstalling macOS is, you should always retrieve your data from the Mac before any further movement. After all, you can't tell if you want it back or not in the future.
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