It's a bunch of crap. This dam ruined my laptop. During installation my laptop went into blue screen error mode and I had to restart my computer. He's never done this before and now he does the same thing every time I try to do something. Don't buy this junk. My laptop needs a refund. I can't believe Revain approved this product. This leads me to believe that every other product this Amazon company has is like this. Complete disappointment
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