GPUs (Graphics Processing Units) are an essential part of any computer system. They are responsible for handling software operations that require massive graphical prowess. The two most common cases are when the user runs a modern video game or creates 3D renders. It can be extremely disappointing if you are met with the 'Application has been blocked from accessing graphic hardware' error whenever you start the selected application. In practice, this means that the selected application cannot use the resources of the installed GPU.
Two common causes for the appearance of this particular error are faulty graphic drivers or if a conflict arises when two different applications want to use the GPU at the same time. To address the first issue, users can navigate to the Device Manager interface, locate their GPU under 'Display adapters,' and then select either 'Uninstall device' or 'Update driver' depending on their intentions. We do not recommend using this method, though. A far better option is to go to the official website of the manufacturer of your GPU and then select and download the drivers for your specific graphics card model.