The first step in ordering an SSL certificate is generating a Certificate Signing Request. This is very easy to do in IIS7 using the following instructions.

1. Click on the Start menu, go to Administrative Tools, and click on Internet Information Services (IIS) Manager.
   
2. Click on the name of the server in the Connections column on the left. Double-click on Server Certificates.
   
3. In the Actions column on the right, click on Create Certificate Request...
   
4. Enter all of the following information about your company and the domain you are securing and then click Next.
   Name
   Explanation
   Examples
   Common Name
   The fully qualified domain name (FQDN) of your server. This must match exactly what you type in your web browser or you will receive a name mismatch error.
   *.google.com
   mail.google.com
   Organization
   The legal name of your organization. This should not be abbreviated and should include suffixes such as Inc, Corp, or LLC.
   Google Inc.
   Organizational Unit
   The division of your organization handling the certificate. (Most CAs don't validate this field)
   IT
   Web
   City/Locality
   The city where your organization is located.
   Mountain View
   State/province
   The state/region where your organization is located. This shouldn't be abbreviated.
   California
   Country/Region
   The two-letter ISO code for the country where your organization is location.
   US
   GB
   
5. Leave the default Cryptographic Service Provider. Increase the Bit length to 2048 bit or higher. ClickNext.
   
6. Click the button with the three dots and enter a location and filename where you want to save the CSR file. Click Finish.

Once you have generated a CSR you can use it to order the certificate from a certificate authority. If you don't already have a favorite, you can compare SSL features from each provider using our SSL Wizard or by comparing cheap SSL certificates, Wildcard Certificates, or EV certificates. Once you paste the contents of the CSR and complete the ordering process, your order is validated, and you will receive the SSL certificate file.

Install the Certificate

To install your newly acquired SSL certificate in IIS 7, first copy the file somewhere on the server and then follow these instructions:

1. Click on the Start menu, go to Administrative Tools, and click on Internet Information Services (IIS) Manager.
2. Click on the name of the server in the Connections column on the left. Double-click on Server Certificates.
   
3. In the Actions column on the right, click on Complete Certificate Request...
   
4. Click the button with the three dots and select the server certificate that you received from the certificate authority. If the certificate doesn't have a .cer file extension, select to view all types. Enter any friendly name you want so you can keep track of the certificate on this server. Click OK.
   
5. If successful, you will see your newly installed certificate in the list. If you receive an error stating that the request or private key cannot be found, make sure you are using the correct certificate and that you are installing it to the same server that you generated the CSR on. If you are sure of those two things, you may just need to create a new Certificate Request and reissue/replace the certificate. Contact your certificate authority if you have problems with this.

STEP- 2

Bind the Certificate to a website

1. In the Connections column on the left, expand the sites folder and click on the website that you want to bind the certificate to. Click on Bindings... in the right column.
   
2. Click on the Add... button.
   
3. Change the Type to https and then select the SSL certificate that you just installed. Click OK.
   
4. You will now see the binding for port 443 listed. Click Close.

Install any Intermediate Certificates

STEP :3  
if you Have multiple Web server then  Please follow the below instructions
Exporting/Backing Up to a .pfx File

1. On the Start menu click Run and then type mmc.
2. Click File > Add/Remove Snap-in.
3. Click Certificates > Add.
4. Select Computer Account and then click Next. Select Local Computer and then click Finish. Then close the add standalone snap-in window and the add/remove snap-in window.
5. Click the + to expand the certificates (local computer) console tree and look for the personal directory/folder. Expand the certificates folder.
6. Right-click on the certificate you want to backup and select ALL TASKS > Export.
7. Choose Yes, export the private key and include all certificates in certificate path if possible.
   Warning: Do not select the delete private key option.
8. Leave the default settings and then enter your password if required.
9. Choose to save the file and then click Finish. You should receive an "export successful" message. The .pfx file is now saved to the location you selected.

Importing from a .pfx File

1. On the Start menu click Run and then type mmc.
2. Click File > Add/Remove Snap-in.
3. Click Certificates > Add.
4. Select Computer Account and then click Next. Select Local Computer and then click Finish. Then close the add standalone snap-in window and the add/remove snap-in window.
5. Click the + to expand the certificates (local computer) console tree and look for the personal directory/folder. Expand the certificates folder.
6. Right-click on the certificate you want to backup and select ALL TASKS > Import.
7. Follow the certificate import wizard to import your primary certificate from the .pfx file. When prompted, choose to automatically place the certificates in the certificate stores based on the type of the certificate.

and RUN STEP –2














Note
Most SSL providers issue server certificates off of an Intermediate certificate so you will need to install this Intermediate certificate to the server as well or your visitors will receive a Certificate Not Trusted Error. You can install each Intermediate certificate (sometimes there is more than one) using these instructions:

1. Download the intermediate certificate to a folder on the server.
2. Double click the certificate to open the certificate details.
3. At the bottom of the General tab, click the Install Certificate button to start the certificate import wizard. Click Next.
   
4. Select Place all certificates in the following store and click Browse.
   
5. Check the Show physical stores checkbox, then expand the Intermediate Certification Authorities folder, select the Local Computer folder beneath it. Click OK. Click Next, then Finishto finish installing the intermediate certificate.

You may need to restart IIS so that it starts giving out the new certificate. You can verify that the certificate is installed correctly by visiting the site in your web browser using https instead of http or using our SSL Checker.