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Here is the solution to resolve PCI Express Root Complex driver Issue Click here to view the instructions!
HP Recommended

At first my battery was bad and I had to use the laptop with the adaptor plugged in. Then my screen went black, and it could only be used through HDMI to external screen. I accidently uninstalled/disabled my graphics card trying to fix the problem. Before I attempted to reinstall the card I bought a new battery and replaced it, but now I am not getting any visual with the external screen after installing the battery. The laptop is turning on and the external screen is recognizing that an HDMI device is plugged in but still no picture. How can I resolve this problem to regain visual through the external screen and reinstall my card? 

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