  We conducted a systematic study of the disorder dependence of the termination
of superconductivity, at high magnetic fields (B), of amorphous indium oxide
films. Our lower disorder films show conventional behavior where
superconductivity is terminated with a transition to a metallic state at a
well-defined critical field, Bc2. Our higher disorder samples undergo a
B-induced transition into a strongly insulating state, which terminates at
higher B's forming an insulating peak. We demonstrate that the B terminating
this peak coincides with Bc2 of the lower disorder samples. Additionally we
show that, beyond this field, these samples enter a different insulating state
in which the magnetic field dependence of the resistance is weak. These results
provide crucial evidence for the importance of Cooper-pairing in the insulating
peak regime.
