https://blog.wongcw.com/2019/02/18/%e4%b8%8b%e6%9c%88%e5%be%ae%e8%bb%9f%e5%b0%87%e9%9d%a2%e5%90%91windows-7%e7%99%bc%e5%b8%83%e4%b8%80%e5%80%8b%e9%87%8d%e8%a6%81%e7%9a%84sha-2%e6%9b%b4%e6%96%b0/