Starting the Certificates snap-in
You use the Microsoft Management Console (MMC) Certificates snap-in to manage public key certificates
If you are the administrator of the computer, when you add Certificates to your MMC console, you have the option of managing certificates that are issued to one of the following:
If you are a user, when you add Certificates to your MMC console, you can manage certificates only for your user account.
A separate instance of Certificates must be loaded for each entity for which you are managing certificates.