If it's formatted with NTFS, which only allows you to read the drive's files on Mac, you have two ways to enable write access to it.If it's formatted with a Mac-native file system such as APFS or Mac OS Extended, move on to solution 3.If it's formatted with FAT32 or exFAT, you can skip solution 2 and other solutions regarding changing permissions.Which one do you suspect is the culprit of your case? Share your thoughts with your friends. It's not common but Malware or adware may also prevent you from deleting files from an external hard drive on Mac. Though it seems to you that no apps are using the files you want to delete, they may be secretly under use by hidden background processes. Note that the permission issues are not applicable to FAT32 and exFAT drives as they don't have access control. It's also possible that the files you want to delete are not owned by your current account. If you are, you likely have only read access to the files even if you have read and write access to the drive so you can't add files to the external hard drive on Mac. If you are not the administrator of the Mac, you need to ask the administrator to give you access to the drive. Modern file systems like APFS have security permissions, which allow the owner to control who has what access to a drive or its files. You don't have write access to the files you want to delete. If your external hard drive was previously used on Mac with an NTFS driver/reader/mounter, it's natural that you can't modify files on the drive when the driver is no longer compatible with your operating system or the subscription is expired. It's worth mentioning that certain manufacturers may sell an NTFS-formatted drive with an NTFS driver to provide write support on Mac. This is also a major reason why users can't write to an external hard drive on Mac, such as can't copy files from Mac to the external hard drive or delete files on the drive. If your drive is formatted for Windows, which likely has NTFS, it can only be read on Mac. The external hard drive is formatted with the Windows file system - NTFS.ĭrives use file systems to store and organize data, but not every file system has equal support on Mac. If you can't delete files from external hard drive on Mac, it's often resulted from one of the following causes: 1. Why can't I delete files from external hard drive on Mac? How to permanently delete files from external hard drive on Mac? How to delete files from external hard drive on Mac? (Seagate, WD, Toshiba, etc.) What to do if you can't delete files on external hard drive on Mac? Guide to follow if you can't delete files on external hard drive on Mac: Let's start by knowing the reasons why you can't delete files on external hard drive on Mac. However, the simple deletion can be hard to complete if your Mac keeps popping up errors like "The operation can't be completed because backup items can't be modified", "File can't be moved to Trash because it can't be deleted", "The operation can't be completed because the item is in use", etc.įortunately, there are some proven ways to get around the issue. The first is to use the Terminal (in the Applications > Utilities folder), which can be done by running the following two commands.Deleting unnecessary files off of an external hard drive is essential for maintaining its disk space. There are two ways to remove this folder. However, if such behavior happens for files on a locally attached drive, you can go about fixing the issue by locating and removing the hidden trash folders (one in your account, and the other at the root of each locally mounted volume on the system), so the system will rebuild it with proper access permissions the next time you place an item in the trash. Note that there is no trash support for networked volumes, so deleting items from them will result in their immediate removal. This should in most cases empty the trash completely, but if you are experiencing more severe problems, the trash may still remain full, or won't allow you to add items to it (they may be deleted immediately).
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