all you has to do is this uninstall and then reinstall it before full installation it should say c:\games\program files (x86)\GeMM don't put the file there click on browse then Games then click OK it should look like this C:\Games\GeMM
all you has to do is this uninstall and then reinstall it before full installation it should browse c:\games\program files (x86)\GeMM don't put the file there click on browse then Games then click OK it should look like this C:\Games\GeMM