Studio 2011 Freelance compatibility

Hello you all. Hope you are all doing well and working a lot!

I have always used my SDL Studio 2011 (yes, eleven) Freelance version, but just two days ago, I updated my Windows version on my laptop, and since then, I haven't been able to open any files due to a problem in the language resource file or something.

Since it wasnever a problem before, does anyone know if maybe my version became too old and does not match the new Windows? I'm from Brazil and the resellers here take forever to answer - a "forever" my clients may not be willing to wait :/

Thank you very much for your contributions