Hi rob
Dont boher trying to delete anything, you would need to do a full re-format of your drive to get rid of it that way (been there done that) Its a big job, takes hours and you have to re-instal everything youve aded such as programs, drivers etc.
Try Johns idea, you should be able to sort it.
By the way- dont send anyone an attached file in an email-it will spread it.
If Johns idea dosent work try a Big dose of penicillan, that might help?