I agree completely with Stabn. Norton is not the problem, the hdd is. Your drive is on its last legs.

Do not boot up more than necessary. Spinning up the drive will jeporadize your data. The clicking may be due to the heads failing to properly connect with the tracks on the plates.

I could be wrong, but it sounds as if your best bet is to pop the drive and transfer your data to another computer. You can buy a drive enclosure that will allow you to connect your laptop hdd to another computer.

Good luck.