If you have the full version of Proteus 8 Professional, switching languages is usually straightforward:
Proteus is a software tool used for electronic circuit simulation, which allows users to design and test circuits virtually before building them. It's widely used by students, engineers, and electronics enthusiasts. proteus 8 professional multilingual pack full
The official Proteus Design Suite supports the following major interface languages: Installation of Language Packs If you have the full version of Proteus