If you are not signed in, tap Sign in to (Your Device), enter your Apple ID and password, then tap Sign In. If you are running an older version of iOS, you may not need to do this step.
If you’d like to save storage space on your device, tap Optimize iPhone Storage to store smaller versions of photos on your device.
Your desktop must be signed into iCloud with iCloud Photo Library enabled.
You must have iCloud for Windows installed and you must be signed in with your Apple ID. Be sure it’s configured correctly to sync with your iCloud Photo Library.
Any new photos or videos added to your iCloud Photo Stream will appear here.
