Step 1: Log out of any Gmail account(s) you’re currently logged in to, then open https://accounts.google.com.
Step 2: Click the Create Account link below the gray “sign in with your Google Account” box.
Step 3: Below the “Choose your username” field, click I prefer to use my current email address link.
Step 4: Enter your non-Gmail email address you would like to register with Google.
Step 6: Confirm your new account with the email address you provided.