How do I get OpenSSL on Windows 10?

Answered by Phillip Nicastro

To install OpenSSL on Windows 10, you can follow these step-by-step instructions:

Step 1: Download OpenSSL Binary
First, you need to download the OpenSSL binary installer for Windows. Visit the OpenSSL website ( and navigate to the “Downloads” section. Look for the latest version of OpenSSL for Windows and click on the download link.

Step 2: Run OpenSSL Installer
Once the installer file is downloaded, locate it on your computer and double-click on it to start the installation process. A setup wizard will appear, guiding you through the installation steps.

Follow the instructions provided by the wizard, such as selecting the installation directory and choosing the components to install. By default, all necessary components will be selected. You can also choose to add OpenSSL to the system PATH during the installation, which is recommended for easier command-line access.

Step 3: Setup Environment Variables
After the installation is complete, you need to set up the environment variables to allow Windows to find OpenSSL executables. To do this, follow these steps:

1. Right-click on the Windows Start button and select “System”.
2. In the System window, click on “Advanced system settings” on the left-hand side.
3. In the System Properties window, click on the “Environment Variables” button.
4. In the Environment Variables window, under “System variables”, scroll down and find the “Path” variable. Select it and click on the “Edit” button.
5. In the Edit Environment Variable window, click on the “New” button and add the path to the OpenSSL bin directory. By default, it is located in “C:\OpenSSL-Win64\bin” or “C:\OpenSSL-Win32\bin” depending on your system architecture.
6. Click “OK” to save the changes and close all open windows.

Step 4: Run OpenSSL Binary
Now that everything is set up, you can test OpenSSL by opening a command prompt.

1. Press the Windows key + R to open the Run dialog box.
2. Type “cmd” and press Enter to open the command prompt.
3. In the command prompt, type “openssl” and press Enter. If OpenSSL is installed correctly and the environment variables are set up properly, you should see the OpenSSL command prompt.

Congratulations! You have successfully installed OpenSSL on Windows 10. You can now use OpenSSL for various purposes like generating SSL certificates, encrypting files, or performing secure connections.

Note: If you encounter any issues during the installation or have specific requirements for OpenSSL, it is recommended to refer to the OpenSSL documentation or seek assistance from the OpenSSL community.

Remember to keep OpenSSL updated to ensure you have the latest security patches and bug fixes. Check the OpenSSL website regularly for updates and install them as needed.