Fletch,
You did some groundwork by searching the forums.. well done.
But you probably picked the wrong thread.
If you have another look around, you might find reference to scanning in 'safe mode' etc.
I guess the file you 'can't see' is part of the windowns restore system and won't be shown unless you turn that option on in the view file types of explorer (not just the system/hidden files.. look further down the list).
Anyway, I HATE advising what to delete. If no one else joins in, can I suggest you start a NEW topic.
Good luck
W.