Download doesn't work swedish

Hi, I've used Acrobat Reader for many many years without problems.
On May 22 I installed a new version 20.009.20065 and it worked without any problems as Isuspected it to do. But today when I clicked on a pdf document to read it it didn't work. I then tried to install and the file downloads to my download folder. And then I try to install it, then the program says that there is a newer version on my computer already. The I uninstall it. Then download again and this time I get version 19.008.20071 which is an older version. But windows can't find it.
What to do?

Greetings
Rolf Olsson

rlflssn@gmail.com