Home > Questions

Unable to write to the last block of the device. : (-69760)

I have a Toshiba external drive that I used with my MacBook Air with the Toshiba encryption on. Now, I want to use it on my new MacBook Pro. I was asked to initialize it but the process failed with the error, "Unable to write to the last block of the device. : (-69760)." Please help me format this drive.

Best Answered by

iBoysoft author Jenny Zeng

Jenny Zeng

Answered on Friday, June 14, 2024

Apparently, the Toshiba encryption you mentioned is the reason why you get the error "Unable to write to the last block of the device. : (-69760)."

You were asked to initialize the drive because your new Mac can't read it due to its encryption. If you can plug the drive back into the old MacBook Air and decrypt the drive, your new Mac will read it just fine without the need for reformatting.

If you don't know how to decrypt the drive, ask Toshiba support for help. Or, you can try to format the external hard drive on the MacBook Air if it doesn't contain important data.

Read Also:

Fix 'Unable to write to the last block of the device' 69760

 

People Also Ask

Read More Questions

Read More Advice From iBoysoft's Computer Experts

Macの削除ボタンが機能しない

マック/マックブックで削除ボタンが機能しない?12つの実行可能な修正方法

この投稿では、MacまたはMacBookで機能しない削除ボタンを修正するすべての方法について説明します。また、なぜMacの削除キーが機能しないのかをお伝えします。

disco duro mostrando capacidad incorrecta en Windows

¡Solucionado! (Externo)El disco duro muestra una capacidad incorrecta en Windows

Si el disco duro interno o externo muestra una capacidad incorrecta en Windows 10/11, puedes leer esta publicación para obtener algunas soluciones efectivas. Además, ejecuta iBoysoft Data Recovery para Windows para recuperar archivos.

Impossible de copier des fichiers d un Mac vers un disque dur externe

Impossible de copier d'un Mac vers un disque dur externe, correctifs et raisons

Raisons et solutions pour le problème d'impossibilité de copier des fichiers d'un Mac vers un disque dur externe, y compris les disques durs externes WD et Seagate.