Seventh-day Adventists, being of the Protestant heritage, lineage and faith, believe that Michael is another name for the eternal Son of the Father, the Heavenly Christ, and another name for the Word-of-God (as in John 1) before he became incarnate as Jesus. "Archangel" (meaning "Chief of the Angels", "highest messenger") was the leadership position as held by the Word-of-God as Michael while among the angels. According to Adventist theology, Michael was considered the "eternal Word", and not a created being or created angel, and the one by whom all things were created. The Word was then born incarnate as Jesus.  Seventh-day Adventists believe the name "Michael" is significant in showing who he is, just as "Immanuel" (which means "God with us") is about who Jesus is. They believe that name "Michael" signifies "one who is God" and that as the "Archangel" or "chief or head of the angels" he led the angels and thus the statement in Revelation 12:7-9 identifies Jesus as Michael.  Seventh-day Adventists believe that "Michael" is but one of the many titles applied to the Son of God, the second person of the Godhead. According to Adventists, such a view does not in any way conflict with the belief in his full deity and eternal preexistence, nor does it in the least disparage his person and work. In support of the Seventh-day Adventist belief, Michael is also identified by them as being the very commander of Heavenly legions of the hosts of the LORD, God's invincible army, which helped Joshua son of Nun to lead Israel in to conquering Jericho [Joshua 5:14 - "And he said, Nay; but as captain of the host of the LORD am I now come. And Joshua fell on his face to the earth, and did worship, and said unto him, What saith my Lord unto his servant?"]  In the Seventh-day Adventist view, the statement in some translations of 1 Thessalonians 4:13-18: "For the Lord himself shall descend from heaven, with a shout, with the voice of the archangel, and with the trump of God" identifies Jesus as Archangel, which is Michael. (Other translations have "For the Lord himself will descend from heaven with a cry of command, with the voice of an archangel, and with the sound of the trumpet of God.") And the Seventh-day Adventists believe that John 5:25-29 also confirms that Jesus and Michael are the same.

Answer this question "How was it created?" by extracting the answer from the text above.
Seventh-day Adventists believe the name "Michael" is significant in showing who he is, just as "Immanuel" (which means "God with us") is about who Jesus is.