Now you are connected to your admin account, it can be that some predefined plugins need to be updated.
You will see the number of updates needed circled in red.
To update your plugin(s), go in Dashboard > Updates.
In the example, the plugin Akismet which takes care of unwanted/spam comments at the bottom of your posts needs to be updated.
Tick the bock and click on Update Plugins.
Once it is done, you should see a screen similar to this one below. Wait until the links Return to Plugins page is displayed.
Before that you may see a screen with just the title Update Plugins. It means that the update is in process but not finalized.