How to remove lines on hp screen

how do I remove the lines on the screen
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More about remove lines screen
  1. Like purple lines? red lines? Green lines? Black lines?

    I didn't bring my crystal Ball to work today so I don't be able to get all the details from your mind and fix your issue, so you may have to give us a little more detail.
  2. Lines on a screen usually indicate a pending graphics card failure. I have seen this a few times with different graphics cards on allot of different machines. What is your machine model number and what GPU do you have installed?
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