According to your laptop specs, you should be able to play Hunting Unlimited 2011 at Ultra graphics. However, in order to do this, you need to properly download and install the drivers for your computer. Visit the official website, choose the OS that you are currently using and download all the drivers that you don't have installed. You should especially download the GPU driver. Also, visit the following website, where you can learn how to download the latest version of DirectX. After you did this, you shouldn't encounter any more problems in running the mentioned games.
To be noticed that it's advised to download and install games only from official sources (like developer's website). If you don't have an official installer package for any of your games, make sure to download and use one.