I was unsure exactly where to post this. When I go to defragment my C-drive it says the disk is 98% full. Because of this I recently moved all photos, music, and what little video I had to an external drive. The problem remained the same: 98% full. What's up with that? I don't have that much 'stuff' on the computer.
Did a virus or worm put a lot of junk onto my computer? How do I examine what is there and fix the problem?