After completing the file download, you can disconnect your drive from Mac. Remember, do not disconnect the external drive. It will take a couple of hours to download.At first, open ‘Photos’ on Macbook > Preference > iCloud> Check the ‘iCloud Photo Library’ > ‘Download Originals’ to Macbook.To see any external drive’s photo, you have to download the originals to your Mac.Click the Finder icon in the Dock to open a Finder window, then do one of the following to move your files. Still, there is a difference in performing the process. Make sure your Mac is connected to the external storage device (for example, using a USB cable or over a network). This method is pretty similar to how iCloud users run the approach. Method-2: Access the External Drive When There Is No iCloud Connected There are three choices for you there: First Aid. That is the way where you view pictures on an external drive. Find Disk Utility by opening Spotlight (cmd+Space-bar) and type Disk Utility press Enter to open the program. Open ‘Photos’ > Preference> select ‘Use as a System library’. After creating the library, you need to make it your system default iPhoto library to access any time without further issue.Connect your external drive to your Macbook> Click Option > it will ask you to choose a library, choose ‘Create new.’ > Rename its name > Press down arrow > Choose external Drive > ‘OK’ to save it.

How to open mac external drives