How do I check for updates?

There are two ways to do this:

1. In Chrome, click on the menu button (looks like 3 hot dogs on the top right of the screen). Click settings and then About Chrome OS (at the top near the search bar). The second button will say Check for and apply updates.
2. If there is an arrow on the bottom right corner near the clock, click on it and then press "Restart to install updates"