When a file or folder is deleted, by default, it goes to the Recycle Bin,
giving users a chance to Restore a file or folder that has been deleted by
mistake. The final step of removing the file from your drive is to double
click the Recycle Bin, select the files or folders that you want permanently
deleted, click the File menu, and then click Delete. If you want the entire
contents of the Recycle Bin permanently deleted, click the File menu, and
then click Empty Recycle Bin. (Or, just right click the Recycle Bin icon on
your desktop, and left click on Empty Recycle Bin) If you're sure that you
really want to delete files or folders, and want to bypass the step of
having them go to the Recycle Bin, hold down the SHIFT key while clicking on
Delete. Note: When you delete files or folders from your Recycle Bin,
although Windows frees the space that they occupied, if the space on your
drive, where they were, hasn't been used yet, they are still on your drive.
You'd have to use a third party data retrieval utility to Restore them
though.