The Countries list is the basis for the drop–down list from which customers select their country in the Ship To, Bill To, and Tax screens of your store.
If you ship only to certain countries, you can select those countries here, so that only those countries where you do business appear in the Countries drop-down lists throughout your store.
Countries indicated with a check mark will appear in the drop–down list. All countries are assigned. Select or clear the check boxes next to each country name then click Update. Click Next to work on the next screen.
Remember, if you need to make a lot of changes here you can change the number of listed items shown per screen. At the bottom of the list, enter a new number, such as 100, and click the Refresh arrow button, to view and work with more countries at one time. Use the Select All and Clear All check mark buttons at the top of the list to select or clear all the check boxes on the screen at one time. Remember to click Update before going on to the next screen.