Check your java installation

if your java is ok, then you can install xamarin without any issue

but if your java can not be updated for example, that means you have issue with your java

you have to uninstall all java


quite a mess on my pc (it contains android eclipse etc2….) –> I use this to remove all java !

Once you remove all java, then try to install xamarin studio then java again


anyway, I finally manage to make all eclipse working again and xamarin studio installed


Tested on windows 8 pc