This article is just a quick reference not a duplication of Microsoft’s work. For more details about checkboxes please visit :
(http://office.microsoft.com/en-us/word-help/make-a-checklist-in-word-HA001162451.aspx)
"On the View menu, point to Toolbars, and then click Forms. On the Forms toolbar, click Check Box Form Field. Note If the check box has a gray background, click Form Field Shading
on the Forms toolbar to remove the gray shading. Click the next cell where you want to insert a check box, and then press CTRL+Y to insert another check box. After you insert a check box for each item that you want, click the top right cell and type the text for the first item. Repeat this step for each item in the list."
Microsoft.com (http://office.microsoft.com/en-us/word-help/make-a-checklist-in-word-HA001162451.aspx)