How to Install an SSL Certificate on Microsoft Office 365 using IIS
AboutSSL brings you an easy and super-quick guide on how to install SSL Certificate on Microsoft Office 365
![microsoft-office-365-logo](http://aboutssl.org/wp-content/uploads/2017/07/office-365-image-aboutssl-300x69.jpg)
Since its launch back in 2011, its popularity has grown by leaps and bounds. Recently, we have been getting a lot of questions from our readers on how to install an SSL certificate on Office 365. Well, we’re always here to help you. Follow our detailed step-by-step guide to bolster your data-security using an SSL certificate.
Let’s get started.
Voila! You have just installed an SSL certificate on your website!
A Step by Step Guide to Install SSL Certificate on Microsoft Office 365 using IIS
- First, open the Zip file that your certificate authority sent you via mail. Now, save the SSL certificate file (yourdomainname.cer) to the desktop of your ADFS server.
- Now, open Internet Information Services (IIS) Manager from the Start.
- In the IIS Manager, find Connections panel on the left-hand side. Double-click on Server Certificates icon in the middle panel as shown in the below image.
![iis-manager-server-certificates](http://aboutssl.org/wp-content/uploads/2017/07/iss-manager-server-certificates-aboutssl.png)
- Click on Complete Certificate Request in the Actions panel on the right-hand side of your screen. On doing it, “Complete Request Certificate” window will open up.
![iis-manager-ccr](http://aboutssl.org/wp-content/uploads/2017/07/iis-manager-ccr-aboutssl.png)
- Under File name containing the certification authority’s response, enter or browse the path of the .cer file that you saved earlier.
- In the Friendly name field, type the name you want the certificate to be commonly known as.
Note: This is just a casual name. It is not a part of the SSL certificate. It is used just for easy reference.
- Select Personal in Select a certificate store for the new certificate drop-down.
![office-365-ssl-installation-iis-scar](http://aboutssl.org/wp-content/uploads/2017/07/office-365-ssl-installation-iis-scar-aboutssl.png)
- Under File name containing the certification authority’s response, enter or browse the path of the .cer file that you saved earlier.
- In the Friendly name field, type the name you want the certificate to be commonly known as.
Note: This is just a casual name. It is not a part of the SSL certificate. It is used just for easy reference.
- Select Personal in Select a certificate store for the new certificate drop-down.
Assign the Certificate to the Website
- Again, open the IIS Manager. Select Sites in the Connections panel of the left-hand side. Now, double-click on the Default Web Site.
![iis-manager-default-website](http://aboutssl.org/wp-content/uploads/2017/07/iis-manager-default-website-aboutssl.png)
- In the Actions menu under Edit Site, open Bindings.
- Click on Add.
![iis-site-binding](http://aboutssl.org/wp-content/uploads/2017/07/iis-site-binding-aboutssl.jpeg)
- You should see Add Site Bindings window now. Enter the following information before clicking the OK button.
Type: HTTPS
IP Address: All Unassigned
Port: 443
SSL Certificate: Select the Friendly Name of the SSL certificate that you entered before.
![iis-site-bindings-add-site-binding](http://aboutssl.org/wp-content/uploads/2017/07/iis-site-bindings-add-site-binding-aboutssl.png)
Voila! You have just installed an SSL certificate on your website!
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