My girlfriend has a MBA an it is full (less than 2gb). It looks like the culprit is Photos, hogging about 30% of her 128gb drive. She never uses the application, ever (although she still uses iCloud to back up all the photos from her phone). I have turned off iCloud Photo Library/Photo Stream/Photo-sharing inside the Photos app, assuming it would just remove them. But it appears they are all saved locally. If they are ALL backed up to iCloud, and I have those syncing options turned off, can I delete the Photos.app contents? What I want to avoid is her logging back in one day, noticing they are all missing, then just wiping them from her iCloud account.