Hi, I bought Witcher 3 on disc and installed GOG Galaxy. I specified my installation folder on E:/. But the installation bypassed this setting and installed the game, all 30GB of it, to my C:/ anyway.

Why does GOG Galaxy allow that? Steam, even the dreaded Origin never gave me this problem.

Does anyone know how I can fix this, short of uninstalling and reinstall? I wasn't prompted in any way the last time. So I'm worried it will do it again. And I really don't want to download a 30GB file:(