How do I reinstall the same OS on my Mac?

How do I reinstall the same OS on my Mac?

Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions. Follow these guidelines during installation: If the installer asks to unlock your disk, enter the password you use to log in to your Mac.

Does reinstalling OS delete everything Mac?

Reinstalling Mac OSX by booting into the Rescue drive partition (hold Cmd-R at boot) and selecting “Reinstall Mac OS” does not delete anything. It overwrites all system files in-place, but retains all your files and most preferences.

How long does reinstalling macOS take?

macOS generally takes 30 to 45 minutes to install. That’s it. It doesn’t “take so long” to install macOS. Anyone making this claim has clearly never installed Windows, which not only generally takes over an hour, but includes multiple restarts and babysitting to get to completion.

How do I do a clean install of my Mac without losing data?

How to Update & Reinstall macOS Without Losing Data

1. Start up your Mac from macOS Recovery.
2. Select “Reinstall macOS” from the Utilities Window and click “Continue”.
3. Follow the onscreen instructions to select the hard drive you want to install the OS on and start the installation.

Will reinstalling macOS make it faster?

You might need to remove some startup programs, run updates on your system, or clean out your storage drive to fix this issue. But if none of these fixes have an effect, reinstalling macOS can likely help speed up your system. This is especially the case if your Mac is approaching a decade of life.

How long does macOS reinstall take?

What is Mac OS internet recovery?

macOS Recovery is the built-in recovery system on your Mac. You can use the apps in macOS Recovery on an Intel-based Mac to repair your internal disk, reinstall macOS, restore your files from a Time Machine backup, set security options, and more. Reinstalling macOS requires an internet connection.