To install openssl on Windows, go to the official website of openssl to download
https://slproweb.com/products/Win32OpenSSL.html
Select the developer version of openssl to download (that is, the larger installation package)
32-bit package
https://slproweb.com/download/Win32OpenSSL-1_1_1i.exe
64-bit package
https://slproweb.com/download/Win64OpenSSL-1_1_1i.exe
Here I demonstrate the installation of the 32-bit openssl package
I installed openssl in C:/Program Files(x86)/OpenSSL-Win32/
Click finsh to finish