I found a suitable computer, and checked for updates requiring SSE2. Here is the list: KB4034775, KB4343674, KB4458000, KB4458006, KB4462987, KB4463573, KB4473077, KB4487085-v2, KB4487385, KB4489977, KB4490385, KB4493793, KB4493794, KB4493795, KB4493796, KB4493797, KB4494528, KB4495022.
Updates replaced by updates requiring SSE2: KB4087398, KB4093257, KB4463361.