This is Windows 8.1 problem as I can not update NONE of my drivers, not just video. Uninstalling current video driver will most likely result in not being able to install any other drivers but default Microsoft VGA driver which for me will result in erasing Window 8.1 and reverting back to Window 7. Microsoft should address this issue where even OEM drivers will not install. It looks like currently install drivers are locked in and can not be updated. Even F7 trick will not release it. I tried everything else including manual drivers update. Same error: Drivers not validated.. blah.. blah.. I just left it alone. Do not feel like formatting my C: drive.
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