Device manager (problems with drivers)

[immanuelmaina]

Hi, i recently unistalled my intel hd graphics card and i am now experiencing problems putting it back ...some other drivers are missing. I have tried softwares to reinstall but the yellow triangles are still there with a statement "Windows cannot initialise the device driver for this hardware. (Code 37) {Operation Failed} The requested operation was unsuccessful."

PC DETAILS ;windows 8 dell inspiron 3521 Service Tag: J7HRQX1 Express Service Code: 41811975685 . Please help also my keyboard, touchpad and audio aren't working ??

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