
Ensure the external hard drive have enough free space
Expand the privilege of this user and choose Read & Write.Īfter resetting the permissions of the external hard drive, you can put items to it freely. Select the user name of the account that you currently log into the Mac under the Sharing & Permissions section. Click the bottom padlock and enter the admin password to unlock it. Reasons why your Mac can't copy to an external hard drive: Look below to check which is the cause that leads you to fail to move files to your external hard drive on your MacBook, iMac, or other models. Here, we've concluded all the possible factors. The reasons for this problem are multifarious. It is not a simple issue that you are unable to copy files from your Mac to an external hard drive. Why can't you copy files from Mac to an external hard drive? FAQs about can't copy from Mac to external hard drive Can't copy from Mac to an external hard drive, what to do? More importantly, you can get solutions to fix the issue that you can't copy from Mac to an external hard drive. If you have no idea, this post will supply you with a clue. Why won't your files transfer from Mac to an external hard drive? The causes are various. However, you find that can't copy and paste or drag and drop items to your external hard drive as usual. You connect your external hard drive, USB flash drive, Pen drive, or another storage device to your MacBook, iMac, or another Mac model and then prepare to move files to it such as transferring files to WD My Passport from Mac.