I have an HP ProBook 450 G1 with an AMD Radeon HD 8750m. When I upgraded from Windows 7 to 10 several months ago, I kept getting an INTERNAL_POWER_ERROR BSOD. I did something to uninstall the AMD driver or card, and since then, I haven't been able to find it on my computer. Under the Device Manager, I found that the driver was hidden. In the Properties, I found that both Is Present and Is Connected were false. How do I get it working again?