If this is what you want to do, then skip to step #3. This will include your entire image library in the download. Scroll down the list of products until you find Google Photos and check that. In this case, we'll assume you only want to download your Google Photos images and video - so click ‘deselect all’ under the ‘select data to include’ tab. Then, you'll be able to start the process and select the content from your Google account that you’d like to download.
First, you'll want to head to and sign in to your Google account.