You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Unknown Error 256 in PHOTOS

I cannot export photos from the PHOTO app to my MacBook Air desktop, or to an external storage device, or add to emails. What is the cause of this error and how do I fix it? Thanks

MacBook Air 13″, macOS 10.15

Posted on Oct 9, 2020 12:49 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 9, 2020 9:14 AM

Boot into Safe Mode (How to use safe mode on your Mac - Apple Support) by booting with the Shift key held down and try to export from there.  Reboot normally and try again.

NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 
• Verifies your startup disk and attempts to repair directory issues, if needed
• Loads only required kernel extensions (prevents 3rd party extensions from loading)
• Prevents Startup Items and Login Items from opening automatically
• Disables user-installed fonts 
• Deletes font caches, kernel cache, and other system cache files


2 replies
Question marked as Top-ranking reply

Oct 9, 2020 9:14 AM in response to BaliBlah

Boot into Safe Mode (How to use safe mode on your Mac - Apple Support) by booting with the Shift key held down and try to export from there.  Reboot normally and try again.

NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 
• Verifies your startup disk and attempts to repair directory issues, if needed
• Loads only required kernel extensions (prevents 3rd party extensions from loading)
• Prevents Startup Items and Login Items from opening automatically
• Disables user-installed fonts 
• Deletes font caches, kernel cache, and other system cache files


Unknown Error 256 in PHOTOS

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.