Unfortunately, the ASRock supplied drivers are the same as those from Intel.
Lan driver ver:20.2
Windows 7 ver:20.2.3001.0
Windows 7 64bit ver:20.2.3001.0
Windows 8.1 64bit ver:20.2.3001.0
Windows 10 ver:20.2.4001.0
Windows 10 64bit ver:20.2.4001.0
http://www.asrock.com/mb/Intel/Z97%20Anniversary/index.us.asp?cat=Download&os=Win1064