You want to add libraries of Arduino or other devices to Proteus ! But you don't know where to add. Right? Answer it Here ☺ If you have any questions comment below.
Uninstall Proteus and Install it again. dont change the direction of installation path. Or search " Labcenter Electronic" in ur PC hard disk to find it out. At least one of above is ur case solution.
Meu Deus, procurei tanto por essa pasta que eu não aguentava mais procurar, fui pesquisar no RU-vid e achei esse seu vídeo, MUITO OBRIGADO POR ME AJUDAR. :)