Unable to copy files to mac hard drive (mac hard drive is read-only)

php editor Zimo will introduce to you how to solve the problem of Mac hard disk being read-only and unable to be copied. When we connect a hard drive to a Mac, sometimes the hard drive is read-only, making it impossible to copy or move files. This problem may be caused by system permission settings, incompatible hard disk format, or hard disk failure. In this article, we will provide you with several solutions to help you solve the problem of Mac hard drive being read-only and unable to copy, and restore normal file operation functions.

Fix external hard drive read-only error on Mac without losing data

One of the common reasons why the hard drive appears in external drive read mode on Mac is that the hard drive itself has a format error. If you see the error message "The device is only mounted in read mode when connected" when connecting, this means there is a format error on your hard drive. In this case, you cannot write files on the hard drive.

File system incompatibility is the main cause of "read only" errors on Mac, with NTFS being the most suitable file system for Windows computers. Although the Mac operating system allows files on the external hard drive to be read, writing is not possible because the way NTFS is written is incompatible with macOS. This means you cannot create, edit, or delete NTFS-formatted files on your Mac. To solve this problem, you can use other file systems like FAT32 or exFAT, which are compatible with both Windows and Mac. But it should be noted that FAT32 has a single file size limit of 4GB, while exFAT does not have this limit. By choosing the appropriate file system, you can share files between Mac and Windows seamlessly.

Enter Mac Utilities by holding down Command R and pressing the Power key at the same time. Then select Disk Utility from the menu. In Disk Utility, select the system disk you want to restore and select File->New Image->Create Image from "Macintosh HD" in the menu. "Macintosh HD" here represents your system disk.

4. Part 2: Repair the hard drive that cannot be mounted on Mac. The next step to recover data from the hard drive that cannot be mounted on Mac is to repair the hard drive that cannot be mounted. How to do it? Use the first aid function in Disk Utility or directly format the hard drive.

External hard drive shows as read-only on Mac, how to fix it?

Reformat external hard drive if external hard drive on Mac is due to NTFS file system is write-protected, simply reformat the external hard drive into a Mac-compatible format using the built-in Disk Utility on your Mac to solve the problem. Before reformatting, it is highly recommended to use data backup software for backup.

There are two ways to change the permissions of your hard drive on Mac. The first method is to open the "Show Profile" of the hard disk and change the read-only mode to read-write mode. This modifies access permissions for all files and folders on the system, including the hard drive. This situation is usually because the file is set to "read-only" and can be solved by simply changing the permissions of the hard drive on the Mac. Another method is to change the permissions of the hard disk through terminal commands. For specific commands, please refer to relevant tutorials. No matter which method you use, make sure to back up important files before changing permissions to avoid data loss.

On Mac, if your external hard drive is set as read-only, you may still be able to access and copy the data to another location by following these steps, please check first and move it to a safe location : 1. Connect the external hard drive to your Mac. 2. Open Finder (located on the top bar of the screen). 3. In the Finder window, select the icon for the external hard drive. 4. Right-click the mouse and select the Get Info option. 5. In the window that pops up, make sure the "Read & Write" option is selected in the "Sharing & Permissions" section of the external hard drive. 6. Close the Get Information window. 7. Return to “Finder”

Why Apple Computer Can’t Copy Files to USB Disk

When Mac cannot read and write the hard drive normally, it is usually because the hard drive is formatted as NTFS. To solve this problem is very simple, just install an NTFS for Mac software on your Mac. Just download the legal NTFS for Mac software and install it.

The problem is not the file size, but the format of the USB flash drive. Most USB flash drives are formatted in FAT32 format when shipped from the factory, and this format does not support storing files larger than 4GB. Therefore, if you try to copy some high-definition movies, games and other files, the above prompt will appear.

3. The first step is to insert the hard disk or U disk into the computer, and then press the [Space] shortcut key according to the arrow in the picture below. In the second step, after opening the [Disk Utility] window, select the disk according to the actual situation as shown in the figure below.

4. The hard disk file system is not compatible with Mac computers. This is the most common reason why "Mac cannot copy and write files to the external hard drive". If your hard drive or USB flash drive is an NTFS file system, Mac does not have "write" permissions for NTFS-formatted hard drives, only "read" permissions.

5. Analysis of the reasons why the U disk cannot be detected 1) The U disk is not completely inserted into the computer. The U disk is not inserted into the computer properly, so it cannot be opened, and naturally the files cannot be copied.

6. The reason why files on an Apple computer cannot be copied to a USB flash drive: The USB flash drive is formatted as NTFS and can only be transferred under Windows systems. There is no indexing area in the USB disk. Question: The U disk format is FAT32 (MS-DOS), but the target file capacity is greater than 4GB.

Mac cannot copy and write files to the mobile hard disk, what should I do with the USB flash drive?

1. Follow the wizard prompts and restart the computer to complete all configurations. After the Mac restarts, open the Mac "Preferences" and you will see the icon of this software. Just double-click it to open it.

2. Open the Mac laptop and connect the mobile hard drive through the USB cable. You can see a hard drive icon appear on the desktop. Right-click the icon. There is no copy option at this time, which means that the mobile hard disk is formatted by default under the Windows system and is read-only under MacOS.

3. Insert the mobile hard disk into a Windows computer (an Apple computer with dual systems installed will also work) and open the resource manager. Right-click the mouse to select the target hard disk or USB flash drive and click Format. Set the file system to exFAT.

4. Select a file on the computer (the file size is smaller than the USB disk capacity), right-click the mouse and select copy. Enter the root directory of the USB flash drive, right-click the mouse and select Paste Project. Check to see if a progress bar appears. If it appears, it means that the current file can be stored in the USB flash drive. File pasting is completed.

5. The solution is as follows: Find a file smaller than the U disk capacity and copy it to a mobile hard disk or U disk, or prepare a large-capacity mobile hard disk or U disk (it can be larger than the file). You can also Prepare several mobile hard drives and USB flash drives and copy them in batches. Format the USB flash drive or mobile hard disk into exFAT and try again. You can see that the files can be copied.

6. Method 1: You can format the U disk and certain hard disks into FAT32 and use them later. Method 2: Although the Mac system does not provide support for NTFS partitioned storage devices, you can use some other third-party software to copy files to the hard disk or USB flash drive.

What to do if Apple computer files do not have access permissions

If the disk permissions for the currently logged-in user are set to "No Access Permissions", you need to manually adjust its permissions to "Read Only" or "Read and write”.

Open Finder, find the folder you want to modify permissions, and open the file information dialog box. Two ways to open: right-click the folder and select "get info". Use "ctrl i".

The solution to the problem that Apple computers do not have permission to open applications is as follows: Open the System Preferences interface and enter Security and Privacy. Click the lock icon in the lower left corner to unlock change permissions. Change the apps that are allowed to be downloaded from the following locations to "Any Source" and then open the app.

Here is a picture in .jpeg format. When you open it, a pop-up box appears that requires access permissions. How do you open it? Right-click on the image and click Show Introduction. Then scroll to the bottom to see sharing and permissions. Unlock it, then enter the administrator password, add the admin account, select read and write permissions, and then you can open it.

According to the relevant public information query, the account is set to have no access rights, so the project cannot be opened. If you do not get the permissions you want, please contact the administrator of the computer, the owner of the file or folder. If you are logged in to the computer as an administrator, or you know the administrator's user name and password, you can change the permissions yourself.

MACBOOK cannot copy things to the removable hard drive

The hard drive is damaged or the hard drive file system is damaged. If there is some problem with the Mac system, it is very likely that the hard drive will not operate when connected to the computer. Mac system failure If there is some problem with the Mac system, it is very likely that the hard drive will become inoperable even if it is connected to the computer.

Follow the wizard prompts and restart the computer to complete all configurations. After the Mac restarts, open the Mac "Preferences" and you will see the icon of this software. Just double-click it to open it.

Format the mobile hard drive. Enter LaunchPad, find Disk Utility and click to open it. Click on the mobile hard drive on the left and click "Erase" at the top.

The hard disk file system is not compatible with Mac computers. This is the most common reason why "Mac cannot copy and write files to the external hard drive". If your hard drive or USB flash drive is an NTFS file system, Mac does not have "write" permissions for NTFS-formatted hard drives, only "read" permissions.

Open your Mac laptop and connect the mobile hard drive via USB cable. You can see a hard drive icon appear on the desktop. Right-click the icon. There is no copy option at this time, which means that the mobile hard disk is formatted by default under Windows systems and is read-only under Mac OS.

After logging in to the desktop of the Apple computer, connect the mobile hard drive to the Apple computer, and then click the "Launcher" icon on the Dock bar at the bottom. Then click on the video or photo you want to copy to your hard drive, and select "Photos" here.

Conclusion: The above is a summary of the answers that this site has compiled for you about the Mac hard drive that is read-only and cannot be copied. I hope it will be helpful to you! If your problem is solved, please share it with more friends who care about this problem~

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