There are times where a Chromebook will need an update in order to function properly. Here's a way to see what version of Chrome OS your device is on and how to update it.
Click [Status Bar]① at the bottom-right of the screen, then click [Settings]②
At the bottom right, select [ChromeOS]③
Note: When your Chromebook checks for updates, it sends some information to Google, like the computer’s version number and language. This information isn't associated with you or your Google Account.
If your Chromebook finds a software update, it will start to download automatically.
After the update is complete, you may get a message that restarts your Chromebook. Click [Restart] to finish the update installation⑤