Hi there,
My name is Casey, and I'm with the BackupAssist team. Thanks for posting on our forum.
BackupAssist should be able to install and operate just fine on Portuguese-language using systems. We also have a Portuguese distributor that could help you in the case that there are language barriers you're concerned about. I have a link below to our distributor in Portugal in case you would like to contact them directly:
http://www.digicomp.pt/Backupassist/backupassist.htmI hope this helps, please let me know if you have anything further to add.
Kind regards,
Casey Burns
BackupAssist Support