Does reinstalling macOS delete anything?

2 Answers. Reinstalling macOS from the recovery menu does not erase your data. However, if there is a corruption issue, your data may be corrupted as well, its really hard to tell. … Reinatalling the os alone does not erase data.

Can I reinstall macOS without losing data?

Option #1: Reinstall macOS without Losing Data From Internet Recovery. Click the Apple icon>Restart. Hold down the key combination: Command+R, you will see the Apple logo. Then choose “Reinstall macOS Big Sur” from utilities window and click “Continue”.

Does reinstalling macOS keep files?

macOS Recovery keeps your files and user settings intact when reinstalling. Important: Your computer must be connected to the internet to reinstall macOS.

What happens if I reinstall macOS?

This installs the system that came with your Mac when it was new. It isn’t associated with your Apple ID, so the new owner can use the App Store to upgrade to a later version using their Apple ID.

How do I clean and reinstall my Mac?

If you’re reinstalling on a Mac notebook computer, plug in the power adapter.

  1. Start up your computer in macOS Recovery: …
  2. In the Recovery app window, select Disk Utility, then click Continue.
  3. In Disk Utility, select the volume you want to erase in the sidebar, then click Erase in the toolbar.

How do I reinstall OSX without Internet?

Command R – Install the latest macOS that was installed on your Mac, without upgrading to a later version. Shift Option Command R – Install the macOS that came with your Mac, or the version closest to it that is still available.

How can I repair my Mac without losing data?

In this guide, we will teach you how to boot Mac into recovery mode and reinstall macOS without losing your data.



How to Reinstall Mac OS?

  1. Step 1: Backup Files on Mac. …
  2. Step 2: Boot Mac in the Recovery Mode. …
  3. Step 3: Erase the Mac Hard Disk. …
  4. Step 4: Reinstall Mac OS X without Losing Data.

How long does macOS reinstall take?

Depends on what kind of Mac you have and method of install. Typically, if you have a stock 5400 rpm drive, it takes about 30 – 45 minutes using a USB installer. If you are using the internet recovery route, it can take over an hour, depending on speed of internet etc.

Why does it take so long to reinstall macOS?

Since the main reason for slow OS X installs is the use of relatively slower installation media, if you are planning on installing OS X multiple times then you might benefit from using faster media.

Why can I not reinstall macOS?

First, completely shut down your Mac via the Apple Toolbar. Then, hold down Command, Option, P, and R buttons on your keyboard as you restart your Mac. Continue to keep these buttons held until you hear the Mac startup chime twice. After the second chime, let go of the buttons and let your Mac restart as normal.

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