To optimally use an external drive (hard drive, SSD, USB), you need to clean it from time to time, deleting unnecessary files. Yes, and disconnecting an external drive in macOS requires user attention. It turns out that this is not always a simple and trivial task.
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Incorrect disconnection of the drive from the system can lead to the fact that the data structure on it will be damaged. As a result, you cannot use this storage in the previous mode, with some probability it will have to be formatted. In this article we will tell you how to better and more correctly delete files on an external drive connected to a Mac.
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Do not remove the USB flash drive or external drive from macOS before emptying the Recycle Bin
When you delete a file from an external drive, it moves to Shopping cart on a Mac. In turn, a shortcut and additional metadata appears on the external drive, which are placed in a hidden folder with the name .Trashes. As soon as you empty the trash on Mac, the contents of this folder on the external drive will be automatically deleted.
If you delete files from an external drive, and then immediately remove the drive from the system without cleaning Baskets, then the free space on the external drive may decrease. And the information in .Trashes may be damaged, which will lead to the inability to calculate its total size. Another consequence may be that you can no longer empty the basket itself. A delete error will occur.
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Browse the .Trashes folder in Finder
If you want to see the folder .Trashes and its contents in Finder, then you have to activate the ability to view hidden files. In this article, we have already talked about how this can be done on a Mac.
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How to delete files from a USB stick or external drive on macOS
To delete a file correctly, drag it to Shopping cart on a Mac or select files by deleting them using a combination Command ⌘ + Backspace. After you have done this, it is important to empty the Mac trash bin when the USB or external hard drive is still connected. This will not only delete the file on macOS immediately, but also clear the folder .Trashes on an external drive. That is why unnecessary data will not remain there.
If you deleted files without connecting an external drive, then connect it to your Mac computer and make sure that The basket there is at least one new file. Then clean Shopping cartso macOS also cleans up the folder .Trashes on an external hard drive.