Type the following command in the address bar, as appropriate for the version of Word that you're running and its installation type, and then press Enter.
To do this, type windows ex in the Search box (in Windows 10, Windows 8.1, or Windows 8) or in the Start Search box on the Start menu (in earlier versions of Windows), and then press Enter.
Type regedit in the Search box (in Windows 10, Windows 8.1, or Windows 8) or in the Start Search box on the Start menu (in earlier versions of Windows), and then press Enter.In the Run dialog box, type winword /a, and then press Enter.Type Run in the Search box (in Windows 10, Windows 8.1, or Windows 8) or in the Start Search box on the Start menu (in earlier versions of Windows), and then press Enter.Select the file that you want to open and insert, and then select Insert.On the Insert tab, select Object in the Text group, and then select Text from File.On the File menu, select New, and then select Blank Document.
Before you modify it, back up the registry for restoration in case problems occur. Serious problems might occur if you modify the registry incorrectly. Follow the steps in this section carefully.