When the process is finished you will see the following screen:.Copying installer files to disk process can take some time depending on type of your memory stick (2.0 or 3.0) and your internal HD (HDD or SSD).
You can double check the location of your Install macOS Sierra.app in Applications folder.
You can still get the OS X El Capitan via this link - thanks to for pointing out. Mac models are compatible with macOS Sierra:
Of your screen, choose About This Mac, then choose More Info. Your iMac late 2010 is compatible with Sierra according to the official MacOS Sierra - Technical Specifications page.įor details about your Mac model, click the Apple icon at the top left