Yewimmxqbs64

I have a problem & it's called yewimmxqbs64. I found a thread but its locked. I ran my Norton 360 & Norton Power eraser. I've used Norton for almost 10 years now & never had to sign up for these forums so I have 2 questions.... what to do about the yewimmxqbs64 virus & why do all the forums here have locks on them ?? Any help is greatly appreciated.