You need the Motherboard model to search for the appropriate driver in the maker's website, search in downloads according to motherboard model and download the available graphics driver.
If you don't know the exact MSI Motherboard Model, install a System Information software to get the model, and search for the driver in the MSI website.
Or if you'd rather automate the driver search, download and installation, install SlimDrivers. Once it's installed the graphics driver, uninstall the application or configure it to work only on your demmand; disabling, autostart, autoscans, autosearch, autoupdates, etc. I've used this application and it's free from bugs and it's trouble free, just disable the anoying automatic functions.