Adobe Application Manager CS5 downloads but does not install Spanish update on Windows 8.1 64 bit Spanish

I have a multi license for Adobe Creative Suite Design Premium CS5 in Spanish. I installed it correctly in Windows 8.1 Spanish 64 bit. Photoshop 32 and 64 bit start, same with Illustrator with some fix. Yet when I look for updates, 10 are found by Adobe Application Manager, but for a few days I get a message (in Spanish) that "there was an error while downloading, try again later". I do it for some days already without success. I have the same Spanish suite installed on Windows 7 64 bit (English) for some good time (2 years probably), and there the now no updates.

The PDapp.exe file is from the year 2010. Is it not too old as for Adobe?

Kind regards

Marcin Balcerzyk, Spain