You will probably need to re-flash his BIOS. It may be possible to reset them to defaults with a jumper on the mobo. In either case you need to find out EXACTLY what ...

Follow these suggestions to fix the Installation Failed error when installing Intel Graphics Driver on Windows computers: Install Driver using Intel Driver & Support ...

Be honest, when was the last time you installed anything in a PCIe slot that wasn't a graphics card? We still indulge in this charade, where ATX motherboards come equipped with several 1x and 4x slots ...