Many Mac users encounter a headache when using USB flash drives - Mac cannot copy files to USB flash drives. So why does this happen?
Copy files from Mac to USB drive
First, let's explain why this problem occurs. When you use an NTFS formatted USB flash drive on a Mac computer, you may encounter a situation similar to the "Unable to copy" message displayed. This is because Mac computers do not have "write" permissions for NTFS-formatted disks by default. You can right-click the USB flash drive, view the disk introduction, and confirm whether the Mac computer has write permission.
U disk
So, how to solve this problem? Below I will introduce you to two effective methods.
Method 1: Format
You can use the "format" operation to convert the USB flash drive into a file system that Mac can read and write normally, such as ExFAT, APFS, etc. Indeed, "formatting" is an effective way to solve the problem of being unable to write. However, we must remind everyone that formatting will erase all data in the mobile hard drive. Therefore, before performing this operation, be sure to back up important files on your hard drive to avoid unnecessary losses.
Method 2: Use Tuxera NTFS for Mac
Considering that most users store a large amount of data on their mobile hard drives, it will consume a lot of time and space if they perform a full backup directly. Therefore, I will give you some suggestions to solve the problem of Mac not being able to write to the mobile hard drive. First of all, it is recommended that you install Tuxera NTFS for Mac , which is a practical mac system reading and writing tool. Its function is to enable your Mac OS to smoothly read and write NTFS format files. Not only that, it also fully supports all external devices such as mobile hard drives and USB flash drives, providing convenience for your data transfer.
On first boot, you need to install kernel extensions. Follow the guided steps to successfully complete this process.
Tuxera NTFS for Mac download address: https:// souurl.cn/EXYLMO
Install extension
Starting the kernel extension means restarting your Mac. After restarting, open Tuxera NTFS for Mac again and make sure it is running in "Enabled" mode.
After re-inserting the USB flash drive, the Mac can read and write the mobile hard drive with the NTFS file system.
The above content is an introduction to why Mac cannot copy files to USB disk. If you are still worried about data loss, you may wish to try the above method to retrieve your data, or you can leave a message in the comment area. The editor will We’ll help you solve it in no time!