Step 1: Open Sophos Central
In the top right corner of the desktop, locate the shield icon with the S in it and double click on it.
This will a open a message box saying "Your computer is protected". Underneath the message, click Open Sophos Endpoint.
This will open the Sophos Endpoint application on your desktop.
Step 2: Select About
In the bottom right corner of the main page, click About.
Step 3: Select Update Now
This will pull up a page similar to the one below. Click Update Now to start checking for updates in Sophos.
Step 4: Verify Sophos Has Been Updated
Above the Update Now button, Sophos should say Last update: followed by the date, meaning it has successfully updated.