Few days before only I have upgraded myself from desktop to Lenovo ThinkPad Y560 Laptop and having Microsoft Windows 7 operating system installed on it. My system was giving excellent performance. While surfing on the internet last night I was facing problem with my keyboard. Essentially laptop detects a key is being present but it doesn't know which. Because it doesn't know which, nothing is typed on screen. Also sometimes some strange characters appear on the screen without typing. I tried restarting the system but the same problem exit again. I need a solution to solve this problem.
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