If you have a standard Downer computer you can install a more recent version of Google Chrome from the Software Center.
To launch Software Center, press the Windows key + R
Enter "softwarecenter:" - note the US spelling and the colon at the end
This launches the Downer Software Center which has approved applications that can be installed without requiring Administrator rights on your workstation
Click on the Google Chrome icon, checking that it is 62 or higher.
Click on Install.
You may be required to restart your machine, but when complete Google Chrome will be installed on your computer.