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Does reinstalling macOS lose data?
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.
How clean install macOS High Sierra from USB?
Create a bootable macOS installer
- Download macOS High Sierra from the App Store.
- When it’s finished, the installer will launch.
- Plug in the USB stick and launch Disk Utilities.
- Click the Erase tab and make sure Mac OS Extended (Journaled) is selected in the format tab.
- Give the USB stick a name, then click Erase.
How can I re-install macOS Sierra from USB?
From the Boot Menu Options, select “ Install macOS Sierra “ Now, your Mac is booted up from the installer drive. You can either directly install macOS Sierra or can access the old-style utility Menu Options including Disk Utility. You can now count on your Time Machine Backup and restore your data.
What can I install in recovery mode on a Mac?
If the entire disk of your Mac has just been erased (instead of only the startup volume), macOS Recovery will probably only allow you to install the version of the OS that came with the computer when you first bought it (or the closest other available macOS version).
How do I launch terminal while in macOS Sierra recovery?
You need to click the Utilities menu, as shown in the image below, then click Terminal. If you do not have the Menu bar showing then you can either try rebooting to see if that makes any difference or just click, e.g. Disk Utility and then close it to see if it will bring the macOS Utilities Menu bar up.
Is there a way to recover data from macOS Sierra?
Updated on April 22, 2019 Mac data recovery No Comments. If macOS Sierra isn’t working in your favour, then you can go for a clean install or reinstall Sierra. After that, you can restore your data using a Time Machine Backup made beforehand.