<p>We extend the Solar Seed Magnetic Dynamo (SSMD) Theory II to resolve the origin of angular momentum in the proto-Solar system. While the Classical Nebula Hypothesis explains collapse and disk formation, it leaves rotation unexplained. In SSMD II, proto-Sun convection drives plasma currents that generate seed magnetic fields. These fields couple to the nebula, transfer torque, and spin up the disk within ~250 years.<br>Seed-field amplification through the ?–? dynamo is supported by analytic models and 3D MHD simulations. Observational anchors—including ALMA, SDO/HMI, JWST, SKA, and Aditya-L1—already confirm ~70–75% of predictions. Together, SSMD II and CNH yield an almost complete (~100%) framework for Solar System formation.<br> </p>