Newport Boy, I've used Avast in the past (pure poetry, eh?)and found it good, but in one instance it allowed a worm to attack me, so I switched to AVG. Of course, it just depends on when you boot up the computer (and it updates) whether the supplier has written an antidote to any particular threat. Since here we are 12hrs in front of Britain, 18hrs+ in front of America, I supposed that with the location of AVGs writers that we might get a jump on new virus'. Usually do, because this is the first infection for years.
Job to do, so I'll put AVG through and try later.