Updated November 2020: Updated for macOS Big Sur's public release. Questions?Īny questions about performing a clean install? Let us know below in the comments. Agree to the software terms and conditions.Īre you in the market for a new MacBook? Check out our favorites for the year.Click Continue again when the installer window appears.Click on Reinstall a new copy of macOS.Step 4: Reinstall a new copy of macOS Big Sur If Scheme is available, select GUID Partition Map.with macOS and your Home folder on it mine is called High Sierra SSD. If your Mac is using APFS, select APFS from the format list. Click the icon for your boot hard drive, to the left of the Disk Utility window. If your Mac is using HFS+, select Mac OS Extended (Journaled) from the format list.Enter a name for the file to be destroyed (Like macOS Mojave or something).Click on Disk Utility in the OS X Utilities selector.Ĭlick on the Erase tab at the top of the window.It’s likely that a lot of Mac owners will be perfectly happy to simply keep what they already have, but with the addition of macOS High Sierra installed as an. Hold down Command-R when you hear the startup chime (or the screen turns black on newer Macs) and keep holding the keys until your computer reboots. During install, High Sierra installer will automatically update file system to the new APFS provided your compatible Mac has a SSD instead of regular mechanical HDD or Fusion drive.Connect your Mac to the internet via Wi-Fi or Ethernet.
CLEAN INSTALL MAC OS SIERRA ON NEW SSD HOW TO
How to create a bootable installer for macOS Big Sur.If you don't create a bootable drive for macOS Big Sur, you may have to install an older Mac operating system first and then upgrade to macOS Big Sur afterward. Open Disk Utility (found in the Applications. Once it has downloaded, follow these steps to create a USB bootable installer. You'll need a copy of macOS Big Sur to perform a clean install later on. Download the macOS Sierra installation package from the Mac App Store. Step 2: Create a bootable drive of macOS Big Surīefore you erase your current operating system, download macOS Big Sur from the Mac App Store. Its also worth looking out for sturdy cars that can withstand a few bumps and.
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