You cannot activate anything without an Autodesk Account. Go to www.autodesk.com/account and sign up. Use a (Gmail, Outlook) or your school email —but ensure you have permanent access to it. Do not use a temporary project email.
Don't let the activation process intimidate you. Follow the steps above, and you'll be sketching and extruding your first 3D model in under an hour. fusion 360 education license activation
Before you can activate the software, Autodesk must confirm you are currently a student or educator. Autodesk Education Products You cannot activate anything without an Autodesk Account