In step 1th, open the Word2010 document window and switch to the Insert Ribbon. Click the Document part button in the text group, and then select the Build Block Manager command from the Open menu, as shown in Figure 1.
Figure 1 Select the building block manager option Step 2nd, open the Build Block Manager dialog box, select the building block name that you want to delete in the building block list, and click the Delete button. Click the Close button after the delete operation is complete, as shown in Figure 2.
Figure 2 Building the Base Block Manager dialog box