"<ol> <li>Close your cmd (check via the task manager that the process is not in the background).</li> <li>Download the executable (openSSL 3.0): <a href="https://www.mediafire.com/file/3nklzep60ezej7j/Win64OpenSSL_Light-3_0_0.zip/file">Download OpenSSL 3.0</a></li> <li> During the installation check the box openssl binary directory (/ bin)</li> <li> Open the environment variable modification panel via 'Start'</li> <li> Click on the environment variable.</li> <li> Click twice on path and add this path via the new button (check that the path is correct):</li> </ol> <p>To verify it is enough to access:</p> <div style="background:#eeeeee; border:1px solid #cccccc; padding:5px 10px">C: \ Program Files \ OpenSSL-Win64 \ bin</div> <p>There you can find an openssl.exe executable file.</p> <p>7.  Open your cmd and type your command.</p>"