The recycle bin is just a list of files that are flagged to be deleted.
Anything that is "in" the recycle bin is just a file name and the location.
When you delete a file, the recycle bin gets an entry. When the recycle bin
is emptied, then the file names in the list are set to be deleted.
When a file is written, it takes space that no other file can also use. The
space is defined in a header that you cannot see or do anything about, but
when another file comes along looking for a place to reside, the information
in the header tells it that it cannot reside here and that it must keep
looking for a place to live. When a file is deleted, all that happens is
that the header is removed so that a new file coming along can reside on
that space -- obvioulsy the new file overwrites the old file. The new file
sets the header space so that the next new file that comes along will not
reside on the same space.
When a file goes to the recycle bin, all that happens is that the recycle
bin makes a list of files that are allowed to have the header rewritten so
that the space can be made available to new files. As long as the recycle
bin shows a file, that file is not gone and the space cannot be used by
another file. When the recycle bin is emptied, then the file space can be
written over by a new file. Until the recycle bin is empty, all files that
are flagged in it are held as whole, and they can be restored. Simply double
click an entry that is in the recycle bin, and the file will be restored,
that is the file will not be flagged for deletion anymore.
So, you put something into the recycle bin that you later restored. Big
deal. The trick, and the question you asked, is how to recover a file AFTER
the recycle bin has been emptied. That is more of a chore.
If your question was how to find something in the recycle bin, then I
apologize, I thought you were smarter than that.