Open the Support Article on Screen
Download the Photo Sync Utility for Mac or PC
0:46 - Double Check your settings for each computer in the Application. Make sure your signed into the right account, All the locations you want to sync on the computer are checked, and the photo sizes are correct.
You can also get more storage space.
View and Edit Photos with Google Plus: Watch https://ufl.ae/videow/tcGiWqjAiJs
Setup Auto-Backup for Android devices: Watch
To get to your private photos on any computer, log in to your Google Account at http://photos.google.com