1. Go To System Library Mac Os
  2. Mac Library Application Support

Photos in your System Photo Library are available in apps like iMovie, Pages, and Keynote. You can also sync them to iOS devices and view them on Apple TV. And if you want to use your own images as your desktop picture or screen saver, the images need to be in your System Photo Library before you can select them in System Preferences.

Apr 17, 2012  Monitor OS X LaunchAgents folders to help prevent malware attacks. The others are in the global Library and System/Library folders, and are loaded when the system boots.

Mac
  1. Go to the Finder (or desktop). Hold the Option key on your keyboard, and click the Go menu at the top of the screen. With the Go menu open, you'll notice that pressing and releasing Option will display or hide the Library choice in this menu. Select Library from the Go menu.
  2. Nov 09, 2012  On the menu bar, at the top, select Go to reveal the drop-down menu and then hold down the Option key (marked ALT) and you will see the /Library folder appear. You may now select this /Library folder with your mouse or trackpad. As soon as you release the Option key, the /Library folder will be hidden once more.

If you have only one photo library, then it's the System Photo Library. Otherwise, the first photo library that you create or open in Photos will become the System Photo Library. If you have more than one library, you might need to designate a System Photo Library, so other apps can access the photos and videos you want them to use.

Follow these steps to designate a System Photo Library:

  1. Quit Photos.
  2. Hold down the Option key and open Photos. One of the photo libraries is already designated as YourLibraryName (System Photo Library).
  3. Choose the library you want to designate as the System Photo Library.
  4. After Photos opens the library, choose Photos > Preferences from the menu bar.
  5. Click the General tab.
  6. Click the Use as System Photo Library button.

If you open a second or different library in the Photos app, and you haven't designated it as the System Photo Library, other applications will use photos from the original System Photo Library. Hold down the Option key when you open Photos to see which library is set as the System Photo Library.

iCloud and the System Photo Library

Go To System Library Mac Os

You can use iCloud Photos, Shared Albums, and My Photo Stream only with the System Photo Library. If you choose a different library in Photos without designating it as the System Photo Library, the iCloud tab in Photos preferences is disabled:

Mac Library Application Support

If you designate a new library as the System Photo Library and then turn on iCloud Photos, the photos and videos in the new library will merge with those already in your iCloud Photos. If you want to keep the contents of your photo libraries separate, don’t turn on iCloud Photos for more than one library in Photos.