After plugging a hard drive with an old photo library in it seems to have erased the library I had on my mac - any ideas of how I can retrieve it?
MacBook Pro Retina
No - it will normally open the last one you opened. Only use the option key to choose a different one from last time.
If it doesn't appear in the list, you should be able to select it from
Your username>pictures>Photo Library.photolibrary
Hold down the option key while starting photos. You should be able to choose the library on your mac from a list.
Fantastic thanks so much! I found them - will I have to use this option all the time now?
Photos overridden on mac
