I think it might not be right that it does not go till the end of the installation.
If you used a very recent installer for GSX, you probably already have the latest files anyway, which explains why the program is working. However, it's not normal that it will stop in the middle of the installation without any error, and nobody ever reported it before.
You can activate logging in the installer, this way:
- Open a command prompt ( start -> CMD -> enter )
- go to the folder where you have the installer, for example:
CD c:\Users\Yourname\Desktop
Assuming you put the installer on the Desktop
- launch the installer with this command:
gsx_fsx_setup.exe /log=install.log
This should hopefully create a file named install.log on your Desktop. If you have it, then send it to me ( via Email, please ).