This article describes how to import a certificate from a PKCS12 file (files with extension .pfx or .p12)

Start the Command program, and type the command certmgr

In the certmgr window, choose “Import” feature, see below:

Click “Next” in the Certificate Import Wizard, and then locate the PKCS12 certificate file:

Then click on Next, then enter “Password” and leave all options by default, see below:

Click on Next in the below window, and then click “Finish”

Finally, you should find your personal certificate in the certmgr window like below: