Verified answer

ok so when u want to edit it and all click the button towards the top that says import media. and find your video. then like edit and all. and then when ur done with that go to publish media towards the top and click the button that says publish to desk top. and ull probably also wanna save it as a project and all on movie maker just in case. and then go 2 youtube and press the upload button towards the top but u have to have an account all. and then click on the desktop file and click open and look for the tittle of the movie...usually will take about 45 minutes to upload and finalize..hope i helped!!=)