normal files left after deleting a file

[simons-photography.com]

So I upload a file by mistake and delete it again but then I get a screen saying that the "normal file" was not deleted.
now if I go into admin control and have the "normal files" deleted will this delete them all and recreate the ones that are veiwed when they are veiwed again ?

[Nibbler]

Were 'normal' files actually created in the first place?

if I go into admin control and have the "normal files" deleted will this delete them all and recreate the ones that are veiwed when they are veiwed again ?

No.