As you know, Microsoft has released the Windows 10 Anniversary Update (or Windows 10 Version 1607) on August 02nd, 2016. In case you haven’t upgraded by now, then no worries as Microsoft is taking care for that too. Navigate the Windows 10 update history web page and click at the Get the Anniversary Update now button to download the Windows 10 Upgrade Advisor. After the download completes then Install the Windows 10 Upgrade Advisor so you can update your existing Windows 10 to Windows 10 Anniversary Update. As usually, the upgrade process is straightforward and self descriptive.
Good luck and enjoy the Windows 10 Anniversary Update!
peace and blessings,