將卸除式磁碟上的所有內容清除

If you have a removable disk, like a USB memory stick or an external hard disk, you may sometimes wish to completely remove all of its files and folders. You can do this by formatting the disk — this deletes all of the files on the disk and leaves it empty.

格式化卸除式磁碟

  1. 從「概覽」啟動《磁碟》應用程式。

  2. Select the disk you want to wipe from the list of storage devices on the left.

    Make sure that you have selected the correct disk! If you choose the wrong disk, all of the files on the other disk will be deleted!

  3. In the toolbar underneath the Volumes section, click the menu button. Then click Format Partition….

  4. In the window that pops up, choose a file system Type for the disk.

    若您會在除了 Linux 的電腦上使用該磁碟，例如 Windows 電腦與 macOS 電腦，可以選擇「FAT」與「exFAT」格式。若您只會在 Windows 電腦上使用該磁碟，選擇「NTFS」也許會更好。每個選項後方都有對個別檔案系統做簡短的解釋。

  5. Give the disk a name and click Next to continue and show a confirmation window. Check the details carefully, and click Format to wipe the disk.

  6. 格式化結束後，按下退出圖示便能安全地移除磁碟。此時磁碟應該要是完全空白並且為可使用的狀態。

Formatting a disk does not securely delete your files

Formatting a disk is not a completely secure way of wiping all of its data. A formatted disk will not appear to have files on it, but it is possible that special recovery software could retrieve the files. If you need to securely delete the files, you will need to use a command-line utility, such as shred.