You cannot search for "PCI Simple Communications Driver." You must identify your motherboard model or CPU generation and download the Intel Chipset Driver or Intel Management Engine Driver package from your motherboard manufacturer's website (ASUS, MSI, Gigabyte, Dell, HP, etc.).
Next time you see that yellow triangle in Device Manager, you no longer have to search vague forum threads. You know the truth: It’s just a lonely Intel Management Engine looking for its driver. Give it the right one, and the ghost will finally disappear. pci simple communications driver