I can emulate these systems on Win10 fine using Dolphin. But i never needed any Bios/plugins/etc to make it happen. I just needed the Dolphin Emu.
Recalbox however, seems to require a Bios of some type. I've since made like 7-8 attempts to download bios files from various sites. No luck, i can't get anything to run, and i'm stumped at the moment. Exactly what kind of Bios/plugin files do i need exactly and, where should they be placed?
Any help would be appreciated.