Available disk space does not increase after deleting files

Available disk spaces does not increase after deleting files.

When a file is deleted, the space used on the disk is not reclaimed until the file is truly erased. The trash (recycle bin on Windows) is actually a hidden folder located in each hard drive. To completely delete the file, another step must be performed.

Macintosh:

Files, when deleted, are sent to the "Trash". To remove the file and reclaim the space, click the trash icon. A Finder menu will appear with an "erase" button in the upper right. Click that button to erase everything in the trash.

Windows:

Files are sent to the "Recycle Bin" when they are deleted from a Windows machine. To empty this folder and reclaim the space, right-click its icon, and left-click "Empty Recycle Bin" on the menu that appears.