But if you plan to clean install on a non-startup drive (you have and extra HDD or SSD on your Mac), you don't need the USB. This flash drive is only needed for a clean install on your Mac’s startup drive.
#MAC CD DRIVE CLEANER HOW TO#
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. So here's a tip for you: Download CleanMyMac to quickly solve some of the issues mentioned in this article.