Problem while downloading nad Nsis Error

Hi, today I tried to download Fmod Studio 2.00.11 but while downloading windows said that this file can not be downloaded safely. After lounching .exe Nsis Error pops up.

I tried to download other versions on my 2 computers but it’s always the same story.

Does anuone know how to fix this problem?

What is the NSIS error that pops up? Can you screenshot it please?