Uuh, I don't have a realtek NIC? Unless you mean it works for the marvell one's?
No you can't use Realtek nic drivers on marvel nic drivers. You should contact the marvel support and see if they will send you the drivers. I did that for Realtek wireless drivers were not available for download and the manufacturer for the wireless adapter had old ones. I told Realtek via email I was trying to get a network drivers for their 81xxx and needed it for so and so OS. They had answered with no problem. Send me everything what I need from Twain.
MS should have the drivers in update push. If not then contact Realtek via email and direct it to your issue. You need to know which Realtek hardware chipset you have.
Yeah, the latest ones from marvell don't work, unfortunately.