How can I remove a ransomware infection?

Kevin’s laptop has been hijacked by ransomware. He has no files worth paying for, but he wants to keep using his PCMy laptop has been hijacked by the ransomware virus. I really have no files on my computer worth paying for. However, how do I continue to use my computer after it has been hijacked? I did a system restore back to when it came in the box, but the ransom screen still covers my home page. KevinRansomware is a type of malware that demands money with menaces: it takes control of y