Update your Chromebook operating system
Your Chromebook automatically checks for and downloads software updates by itself. This happens when your Chromebook is turned on and connected to Wi-Fi.
Finish an update
When your Chromebook downloads a software update, you’ll see an arrow near your account photo:
To finish the update, click Update Restart to Update. Your Chromebook will restart.
Check for updates yourself
- Click your account photo.
- Click Settings .
- Click Menu About Chrome OS.
- Under "Google Chrome OS," click Check for Updates.
- If your Chromebook finds a software update, it will start to download automatically.
instructions from google.com