Hi, John.

Could you please define what you mean by "news group files"?

Do you mean individual messages (posts)?  Or News server accounts?  Or
newsgroup subscriptions?  Or something else?

And are you trying to delete them from within Windows Mail?  Or Windows
Explorer?  Or a Command Prompt window?

Generally speaking, newsgroup messages are stored on the news server, which
is out of the reader's control.  We can only delete messages we've
downloaded to our own computer, and even that is not straightforward.  For
example, we can Unsubscribe from that newsgroup, then Subscribe again and
set it to download New Messages Only.

SOME news servers will let you delete a message that YOU have posted, but
you'll have to find out if your own news server will let you do this - and
how, and how quickly.  In most cases, though, it's like trying to "unring a
bell".  And if I've already downloaded your post, you can't delete it from
MY computer.

Of course, you can also change the View to Hide Read Messages.

RC