Just to provide the correct download links for your system, can you please let me know the model of your computer or paste here your dxdiag report?
Computer Name: DELL
Operating System: Windows 8 Single Language 64-bit (6.2, Built 9200)
System Manufacturer: Dell Inc.
System model: Vostro 270
Processor: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz (4CPUs), ~3.2GHz
Memory: 4096MB RAM
DirectX Version: DirectX 11
Since you have an OEM system, I can provide the latest graphics driver for your graphics controller that will let you get the following:
Intel(R) Processor Graphics 188.8.131.5249
Intel(R) Control Center 184.108.40.2068
Here is the driver:
For the other two, I recommend you updating all the drivers in your system using the ones provided by Dell on their web site. Here is the link:
Try installing the Ethernet Driver and the Management Engine driver.
Sorry, under which category is Ethernet Driver found? and should I install all the 16 files for MS Windows 8 64-bit?
The Intel® driver provided is for Win 7 & 8 64 bit version. So you just need to download it and install it.
The Dell website contains the driver for your computer but I am afraid that it is not known for us. As what I can see, you need to filter the Operating System and select Intel Management Interface under the Chipset and the Ethernet Driver under the Network option.
In case that you are still having problems installing the Dell drivers, I recommend you contacting the computer manufacture support so they can guide you through their web site.