Maybe I have found the trouble after reading part of Chrome documentation.
I have set (into robots.txt) not to explore the folder where I store the installer, as it is an exe and during Google index the file cannot be trusted, it is displayed as a potential malware.
I have just removed that, so let wait for the next indexation and see if I'm right (or not ^^)
Thank for your help guys.
Maybe I have found the trouble after reading part of Chrome documentation.
I have set (into robots.txt) not to explore the folder where I store the installer, as it is an exe and during Google index the file cannot be trusted, it is displayed as a potential malware.
I have just removed that, so let wait for the next indexation and see if I'm right (or not ^^)