Would you like your customers to be able to create an account in the cart. A setting of "Yes" will allow customers to save shipping address information and login to the cart to view previous order information. A setting of "Allow User to decide" will allow the customer to have the choice of registering or using the express checkout. And a setting of "NO" will only allow a customer to register in order to checkout.
The steps below are where you go to change this setting as shown in the screenshot below.
1. Open the Global Cart Settings page.
2. Click Order/Cart Settings.
The Order/Cart Settings page will open, as shown in the image below. Once there you look for the option of "Allow Create Account " and change the options according to your needs based on the definitions above.

