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Does reinstalling macOS delete users?
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 do a clean install on a Mac?
Step 4: Wipe your Mac
- Connect your boot drive.
- Start up – or restart – your Mac while holding down the Option key (also known as Alt).
- Choose to install your chosen version of macOS from the external drive.
- Select Disk Utility.
- Select your Mac’s start up disc, probably called Macintosh HD or Home.
- Click on Erase.
Is there a way to create user account in OS X?
Sure, you can create user accounts using a number of commands, but Setup Assistant is just far easier. Every time OS X boots, it checks for the existence of a file known as .AppleSetupDone. This empty file is created after the completion of Setup Assistant.
Can you re-run the OS X setup assistant?
Under certain circumstances, it can be advantageous to re-run the Setup Assistant. Using some command-line trickery, we can do just this without having to erase and reinstall OS X.
What happens when I set up a new Mac?
During the process, you enter some information, such as your Apple ID, so your iCloud account is activated, but, for the most part, your Mac will be a tabula rasa —a blank slate. It will contain the default apps that are part of macOS, but nothing more. If you go this route, you then need to manually copy files from your old Mac, or from a backup.
Do you need to erase everything before installing macOS?
You probably don’t need to erase, unless you’re selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue.