Windows 7 search feature allows you to quickly find your Microsoft Word documents anywhere on your computer. Although the search is not limited to your documents library, any Word files located there are found quicker, since library contents are indexed by default in Windows 7. To locate just Microsoft Word documents, you can use the advanced search features to filter search results by file extension, which enables to you specify only .doc or .docx extensions.
Click the "Start" button and select "Computer" to open Windows Explorer in your "Computer" folder.
Type "ext:doc" in the top, right search box to automatically view all doc or docx file on your computer. This locates the older doc Word files, as well as the newer docx Word files.
Type "ext:docx" in the search box to view all docx Word files and exclude the older doc format.