Question: how to create pfx file windows 10?
Answer: Launch a new MMC. ...  Add the CERTIFICATE add-in. ...  Expand CERTIFICATES > PERSONAL > CERTIFICATES. Right click on the certificate in question (likely one issued by a 3rd party like GoDaddy) and select ALL TASKS > EXPORT. Click NEXT button on the CERTIFICATE EXPORT WIZARD > YES, EXPORT THE PRIVATE KEY > NEXT button.