Select Mac OS Extended (Journaled) from the format list. Click the Erase tab at the top of the Disk Utility window.To format a USB drive launch Disk Utility (Finder -> /Applications/Utilities/Disk Utility).Create a bootable flash drive with macOS Sierra.įirst, make sure your USB flash drive is formatted and named as “Untitled”.
Step 3: Clean Install macOS Sierra on your startup diskġ.
LEARN MORE: How to Clean Install the macOS High Sierra? It has plenty of new features, and also has the same easy clean install and upgrade flow as did the previous OS.
MacOS Sierra is a fantastic update arriving from Apple to make us love our Macs even more. But to help you do it all by yourself, we’ve gathered our best ideas and solutions below.įeatures described in this article refer to the MacPaw site version of CleanMyMac X. So here's a tip for you: Download CleanMyMac to quickly solve some of the issues mentioned in this article.