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.).
Less frequently, it might be an old dial-up modem, an ISDN TA, or a serial port controller on a server motherboard—but in the modern era, it is the . pci simple communications driver
To understand the SCC driver, you must understand the Intel Management Engine (ME). The ME is a separate, autonomous microcontroller running a stripped-down operating system (ThreadX) embedded inside the Intel PCH (Platform Controller Hub). It runs independently of your main CPU and OS, even when the PC is "off" (as long as it has standby power). You cannot search for "PCI Simple Communications Driver
Here is the interesting content regarding this driver, breaking down what it actually is, why it appears, and why it matters. The ME is a separate, autonomous microcontroller running
If the OEM site is dead or you have a whitebox motherboard: