Question: how to install pfx certificate on windows server 2012?
Answer: Start a MMC session. From a command prompt, type MMC.
Add/Remove Snap-in.
Add Certificates.
Use the Computer Account.
Manage the Local Computer.
Expand to the Personal Certificate store.
Right-click, All Tasks, Import. Then browse to the location of the PFX file to import the certificate. ... 
Browse to the PFX file.