ome gamers have reported an issue with the NVIDIA driver that resulted in the "Physxloader.dll missing, reinstalling the game can fix this problem" when trying to launch Steam games and other games. Independent games like Dragon Age and Need For Speed. This error is related to the PhysX driver, which displays an error when the physxloader.dll file is missing or corrupted. Another cause of this problem is the result of a missing PATH environment variable and the problem of installing the PhysX redistributable package. Note that this error is found on some versions of Windows. In this article, we will solve physxloader.dll related problems by reinstalling PhysX drivers, adding PATH variables and finally.