Jpg files on external drive

Hi mo16_5,

Thanks for posting in Apple Support Communities.

We understand that you're unable to view JPEG files from your external hard drive. Does this behavior occur depending on the source of the files? What format is the hard drive?

Depending on exactly what's happening, this could help: Connect and use other storage devices with Mac

"Get permission to view or work with files on a storage device

If you’re the administrator of the Mac, do one of the following:

• Authenticate as an administrator user: Depending on how you’re attempting to access the file, you may need to authenticate as an administrator user.
• Change Sharing & Permissions settings for the file: For instructions, see Set up file sharing.

If you’re not the administrator of the Mac, ask the administrator to give you access to the files you need."

Regards.