If you are inclined to try some not-officially-supported content, I have posted a fixlet to https://bigfix.me/fixlet/details/26918 that upgrades Chrome to the latest available version for Windows.
Important notes
- This Fixlet does not check the Chrome version and will remain Relevant on any computers that have Chrome, even if the computer is already at the latest version.
- The Fixlet does not verify hash values of the downloaded Chrome installer; this allows the Fixlet to work after Google updates their Chrome installer.
- The latest Chrome version is download as of the time the Action is issued. The download is cached on the Root Server, Relays, and Clients, and the Action will continue to install that static version of Chrome - even if Google updates the download binaries after the Action is issued.