Step 1: Make sure you install Google Chrome on your Windows 8.1 machine
Step 2: Once you install Google Chrome – start it up and make it your default browser
Step 3: If you don’t get the dialog box from step #2 then you have to go into Google Chrome settings and make it your default browser
Step 4: When Google Chrome is set to your default browser – close all windows and relaunch Google Chrome and open “Customize and control Google Chrome”
Step 5: You will see “Relaunch Chrome in Windows 8 mode” option – click on it
Step 6: The entire desktop should look and feel like a Chromebook
Step 7: Go to your “app launcher” and log into your Gmail account
Step 8: Once you are in your Gmail account you have access to all the Gmail features.