Click on the page that you want to change the orentation of, and then go to the
Page Layout Tab, Page Setup Group, and look in the Breaks menu .
You will see four-five different section breaks you can choose. If you have an existing document, it is best to use the “Continuous” section break.
Try to change the orentation again… you will notice it will change it for the current section (section 2).
Now all the pages after that page are landscape..We just repeat the process to create a third section using the Continuous Section Break, then change the orentation back to where we wanted it to be.
It works in Office Word 2007 and 2010.