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Clean install mac os x disk utility download#
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If the installer can't see your disk or notifies you that it can't install macOS on your computer or volume, you may need to erase your disk first.
Clean install mac os x disk utility password#
If the installer asks to unlock your disk, enter the password you use to log in to your Mac.To start the installation process, select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions.įollow these guidelines during installation: Reinstalling macOS won't remove data from your Mac.