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How to Renew an SSL Certificate on Windows Server 2019

How to Renew an SSL Certificate on Windows Server 2019

SSL certificates are essential for securing communications between a web server and clients. They allow data to be transmitted securely through encryption and prevent snooping or tampering of traffic. 

However, SSL certificates have an expiration date and need to be renewed periodically to maintain security. In this comprehensive guide, we will walk through the entire process of renewing an SSL certificate on Windows Server 2019.

Why SSL Certificate Renewal Matters

Before diving into the renewal process, it’s essential to understand why SSL certificate renewal is crucial. SSL certificates typically have a validity period, usually one year or more. After this period, the certificate expires, leaving your website vulnerable to security threats. Here’s why renewal matters:

1. Security Continuity

Renewing your SSL certificate ensures that your website’s security remains intact. An expired certificate can expose your users to potential security breaches, damaging your reputation and business.

2. Trustworthiness

Visitors to your website look for the padlock symbol in their browser’s address bar, indicating a secure connection. An expired certificate may trigger warning messages, eroding trust and deterring users from accessing your site.

3. SEO Ranking

Search engines like Google prioritize secure websites with valid SSL certificates in their rankings. Ensuring your certificate is up to date can positively impact your SEO efforts and help you outrank competitors.

The Renewal Process

Now that we’ve established the importance of SSL certificate renewal let’s delve into the step-by-step process to renew your SSL certificate on a Windows Server 2019.

1. Check Certificate Expiry Date

The first step is to verify the expiry date of your SSL certificate. You can do this through the Certificate Manager on your Windows Server. Simply follow these steps:

  • Press Win + R, then type “certlm.msc” and press Enter.
  • Navigate to “Personal” > “Certificates.”
  • Locate your SSL certificate and check the expiration date.

2. Purchase a Renewal

If your SSL certificate is nearing expiration, it’s time to purchase a renewal from your Certificate Authority (CA). Make sure to choose a reputable CA to ensure the validity and security of your certificate.

3. Generate a Certificate Signing Request (CSR)

To renew your SSL certificate, you’ll need to generate a new CSR. Here’s how:

  • Open the Internet Information Services (IIS) Manager.
  • Select your server, then click on “Server Certificates.”
  • Choose your expired certificate and click “Create Certificate Request” on the right pane.
  • Follow the wizard to create your CSR, providing the required information.

4. Submit CSR to CA

After generating your CSR, submit it to your chosen CA for renewal. They will provide you with the renewed certificate once the process is complete.

5. Install the Renewed Certificate

Once you receive the renewed certificate from your CA, follow these steps to install it:

  • Open the IIS Manager.
  • Select your server and click on “Server Certificates.”
  • Click “Complete Certificate Request” on the right pane and provide the path to the renewed certificate.
  • Complete the wizard and your renewed certificate will be installed.

6. Bind the Certificate to Your Website

The final step is to bind the renewed certificate to your website:

  • In IIS Manager, select your website.
  • Under “Edit Site,” choose “Bindings.”
  • Add a new binding, selecting the renewed SSL certificate and the appropriate port (usually 443 for HTTPS).

7. Test Your Renewed SSL

After completing these steps, it’s crucial to test your renewed SSL certificate to ensure everything is functioning correctly. Use online SSL checkers or browser tools to confirm the renewal’s success.

Additional Tips for SSL Certificate Renewal

In addition to the primary steps outlined above, here are some extra tips and insights to ensure a smooth SSL certificate renewal process:

Keep an Eye on Renewal Notices

Many Certificate Authorities (CAs) send renewal notices via email as the expiration date of your SSL certificate approaches. It’s advisable to keep a close eye on these notifications, so you don’t miss the renewal window. Missing the renewal deadline may lead to extra fees or even the need to purchase a new certificate.

Consider Wildcard SSL Certificates

If you manage multiple subdomains under your primary domain, consider investing in a Wildcard SSL certificate. This type of certificate can cover all subdomains with a single certificate, simplifying the renewal process and reducing administrative overhead.

Automate Certificate Renewal

To avoid the hassle of manual renewal, consider setting up automated certificate renewal processes. Tools like Certbot or Let’s Encrypt can help automate the certificate renewal process for free. They provide scripts that automatically renew and install SSL certificates, ensuring your website remains secure without constant manual intervention.

Backup Your Certificates

Before initiating the renewal process, it’s wise to create backups of your existing SSL certificates and private keys. This precaution ensures you have a copy of your old certificate in case any issues arise during the renewal.

Test Different SSL Certificate Providers

While renewing your SSL certificate, take the opportunity to evaluate different certificate providers. Compare factors like pricing, customer support, and additional security features to ensure you’re getting the best value for your investment. Switching to a new provider may be a viable option during renewal.


Renewing SSL certificates is a crucial security maintenance task for any IT administrator. Following the guidelines in this article, you can smoothly renew your Windows Server 2019 SSL certificates before expiration. 

This will enable ongoing encryption and security for your web servers and avoid any disruption to your business and website visitors. With a renewed certificate installed and bound properly, you can rest assured your websites will remain trusted and secure. 

Remember that SSL certificate renewal is not only a security measure but also a boost to your website’s SEO rankings, making it a crucial aspect of maintaining your digital success.


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