1、download the latest source of openssl from github
2、download nasm，set the enviroment viariable
3、enter into dir C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build
vcvars64.bat
4、enter into the dir of openssl, run the command below
perl Configure VC-WIN64A --prefix=E:\\openssl
5、run
nmake
6、run
nmake install