Are there beta operating systems in other languages?

[AndreMor]

I want to know if there are beta operating systems, preferably the Windows system, in my case, if there is one in Spanish.

Since the Windows 10 betas come out in different languages, I think that Microsoft has made betas in different languages ​​in other versions of Windows. But I do not know.

PD: I still do not have access to the FTP of BetaArchive

[Nightsteed]

Yes. Microsoft has been compiling prerelease OSes in other languages since at least Windows 1.02.02. As for Spanish releases, I think that the first one was Chicago's 222. Since then, a few beta builds have been released in that language for every version of Windows.

[mrpijey]

Use the database we have.