Step 1th, open the Word2010 document window and switch to the development tools Ribbon. Click the Document Template button in the Templates group, as shown in Figure 1.
Figure 1 Click the Document template button
Step 2nd, switch to the Templates tab in the Open templates and Add-Ins dialog box, and then click the Add button in the common templates and add-ons area, as shown in Figure 2.
Figure 2 Click the Add button
Step 3rd, open the Add Template dialog box, locate and select the Word2010 template that you want to set as a common template, and click OK, as shown in Figure 3.
Figure 3 The Add Template dialog box
Step 4th, return to the templates and Add-Ins dialog box, and click OK to apply the current settings, as shown in Figure 4.
Figure 4 "Templates and Add-ins" dialog box