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Q. I was told I need to update a GPU graphic driver to solve a problem, but I am not aware of what driver I am using.
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A. Click START and enter dxdiag.exe in the search column.
DirectX diagnostic till will be pop up and when you click a display tab, you will find something like below.
Product Name : NVIDIA GeForce GT 240
Manufacturer : NVIDIA
In this case, we know NVIDIA is used.
You can save the information as a file on your PC and send it to your support personnel if requested.