Green lines across monitor

I was in the middle of a web search and my computer monitor went black, I restarted the computer and suddenly started seeing a vertical colored line in the middle of the screen but windows started. However, it wnet black again and I tried to re-start it again but this time windows will not start and takes me to a fix errors or start windows normal choice window, selected fix errors but it will not fix. And this time the screen came up with a pattern of green intermittent lines across the monitor. Did I get a virus? or is my hard drive or video card going bad?. Please help

Thanks
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More about green lines monitor
  1. i would test the video card first do you have a onboard video chipset
  2. same happened for me the problem is in your video card
    I think its dying
    Get a new one!!
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