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#Reinstall macos big sur install#
#Reinstall macos big sur upgrade#
#Reinstall macos big sur download#
#Reinstall macos big sur mac#

Then connect the USB flash drive to your Mac.

#Reinstall macos big sur download#

Download the macOS Ventura, Monterey, Big Sur or Catalina installer using Safari or other web browsers onto your Mac.

Option #2 Reinstall macOS without Losing Data From USB

Select your hard drive, click “Install” and wait for end of reinstallation.

Then choose “Reinstall macOS Monterey” or "Reinstall macOS Monterey" from options window and click “Continue”.

#Reinstall macos big sur mac#

(Notes: If your Mac is ON, click on Apple icon, go to Restart to turn off the Mac first.)įor Apple Silicon: Press and hold Power button until you see the startup options window.įor Intel Processor: Press Power button and immediately press & hold Command Command (⌘)-R until you see the Apple logo. Option #1: Reinstall macOS without Losing Data From Internet Recovery Reinstall macOS Ventura, Monterey, Big Sur or Catalina without Losing Data. So, to save you from troubles of lost data due to macOS reinstallation, you are recommended to keep records of what apps you have installed, the account and password, also, you can take screenshots of the settings. Most of our mac users prefer to backup all files but apps. Also, you can adjust the backup setting in menu “Options”.

Then Check the box before “Back Up Automatically”.

Click “Select Backup Disk” to choose an external hard drive to back up the files.

Go to Finder>Application, launch Time Machine and choose “Set Up Time Machine”.

Connect an external drive to Mac for backup.

#Reinstall macos big sur install#

Backup All Your Files for macOS Install (Crucial)īackup is an indispensable step involved in the macOS reinstallation, here are several options to backup your data. If you are reinstalling macOS on a Macbook, make sure the battery percentage is more than 80%.Open Disk Utility and perform the Frist Aid on your hard drive where to reinstall the macOS to make sure your drive is in good condition for reinstallation. Also, quit all apps or programs under work, so your Mac is fully geared to reinstall.Make enough room for Ventura, Monterey, Big Sur or Catalina reinstallation, at least 35GB, so the reinstallation process won't pause or stopped for insufficient space.But just in case of bad luck, we need to do some work on BACKUP, this is crucial for macOS reinstallation without losing data. In fact, reinstallation of macOS doesn’t necessarily cause lost data, it just create a new copy, your existing files and data saved in programs won't be altered or deleted.

We all save tons of data on our Mac, so when we decide to reinstall macOS Ventura, Monterey/Big Sur/Catalina, the top concern always goes to “will I lost everything if I reinstall macOS”.

macOS Ventura, Monterey, Big Sur Reinstallation Not Working?ģ Steps to Reinstall macOS Ventura, Monterey or Big Sur without Losing Data.

What if You Lost Data After macOS Reinstallation?.

3 Steps to Reinstall macOS without Losing Data.

It is not complicate to reinstall macOS Ventura, Monterey, Big Sur or Catalina, but if you want to reinstall macOS without losing data, there are 3 steps you must follow. In the case that you want to sell your mac, besides erasing all your personal data and traces on the mac, you will need to reinstall macOS as well.

#Reinstall macos big sur upgrade#

Therefore, doubtless, there will be new versions of macOS available to upgrade and reinstall.Īs we all know, for no specific reason, system reinstallation can magically solve a slow Mac in most cases. Reinstall When There is New macOS Version AvailableĪpple keeps working constantly to fix bugs, make performance tweaks, add new features or enhance coding.When you continuously see error messages appear on your mac, or your programs randomly crash/freeze for no reason, like FaceTime won't work, Contacts or Calendar shows a delay or mess, blue teeth or WiFi won't connect…Then, you have a good reason to reinstall macOS. Your System Keeps Crashing or Works Improperly.If you have installed Ventura, Monterey, Big Sur, Catalina, Mojave or earlier versions, you may have to reinstall macOS for following reasons: