Here, let’s update from “macOS Sierra (Sierra, 10.12)” to “macOS High Sierra (High Sierra, 10.13)”.
macOS High Sierra（10.13）
Price: Free (at the time of article publication) Category: Utilities © 2017 Apple, Inc. Then the App Store will start There is an explanation about macOS High Sierra, so if you are interested, read it. Once the download is complete, the installation of macOS High Sierra will begin. You must be logged in as an administrator to continue installing macOS High Sierra. Install macOS High Sierra is about to add a new helper tool.
Check version
High Sierra
As it is, the desktop does not look like High Sierra
