My noron Internet security expired a few days ago. A programme called ultradefrag keeps appearing. I did not download it at all. Since then that message appears. I can't alter things on my hard drive and I can't even use external memory storage things like a camera or memory stick.
Can you please tell me how to fix this because it is scarring me so much as I heve lots of coursework on there
Can you please tell me how to fix this because it is scarring me so much as I heve lots of coursework on there