yercellphone.blogg.se - How to reinstall macos from usb

Select Macintosh HD the startup disk from the sidebar.ĭ) Click the Erase tab to erase the startup disk. Mac boots into macOS Recovery mode.ī) In the macOS Utilities window, select Disk Utility, then click Continue.Ĭ) In the Disk Utility window, click View > Show All Devices. Release the key when the Apple logo or Globe icon appears. The steps are as follows:Ī) Start or restart your Mac, then immediately press and hold the Command + R hotkey. Now, boot your Mac into macOS Recovery mode to erase the startup drive and reinstall macOS Mojave. Also, make sure you have an active Internet connection to startup Mac through Internet recovery if macOS Recovery fails. Connect your MacBook Air or Pro to the power source to avoid incomplete installation of macOS due to power failure. Once you’ve backed up your Mac storage drive, proceed further. This is the most crucial step to avoid any data loss.

You can also do it manually using an external storage medium. Whatever be the reason, we’ll help you reinstall macOS safely.īefore you begin the reinstallation, back up your Mac using Time Machine.

Or, when Disk Utility fails to repair the drive and you need to rectify the storage drive partition table.

Mac not behaving properly with the newly installed macOS Mojave.

The macOS requires reinstallation in several situations.

Recover Data from Botched up Reinstallation of Mojave.