stive006 What doesn't work? Doesnt cosmoteer start? doesnt the installer finish downloading? does the download button not work?
stive006 Check your antivirus. Check write protection for `´users/username/documents/my games/cosmoteer``
stive006 Make an exception for Cosmoteer in the antivirus or disable the antivirus.
stive006 When you downloaded the installer did you run it?