Macos High Sierra Download Dmg Install ((new)) (2K)
Use Time Machine or an external drive. A clean install will wipe your current data. Boot from USB: Plug the USB into the Mac. Restart the Mac while holding the Option (Alt) ⌥ key.
Click "Get." This will download a file named Install macOS High Sierra.app into your Applications folder.
You also need at least and 15GB of available storage space . Step 2: Download the macOS High Sierra DMG macos high sierra download dmg install
Release the key when you see the bootable volumes; select the "Install macOS High Sierra" drive. From the macOS Utilities window, select Disk Utility .
Select your internal startup disk (usually labeled "Macintosh HD") and click . Use Time Machine or an external drive
Open Terminal and paste the following command: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
To perform a clean install, you must create a bootable USB installer. You will need a USB flash drive with at least . Format the Drive: Open Disk Utility . Select your USB drive and click Erase . Format: Mac OS Extended (Journaled) . Scheme: GUID Partition Map . Name the drive: MyVolume . Use the Terminal: Restart the Mac while holding the Option (Alt) ⌥ key
Format it as (or Mac OS Extended if you are using an older HDD). Start Installation: Close Disk Utility and select Install macOS .
Apple officially provides legacy versions of macOS through the Mac App Store and their support website.