I am getting this error when I am trying to build my driver:
Driver.cpp(7): fatal error C1083: Cannot open include file: \'ntddk.h\': No such file or directory
Go to project properties -> C/C++ -> General, and add ddk headers path to Additional Include Directories tab. It should be sth like $(WDKPATH)\inc\ddk where $(WDKPATH) is ofc a directory where You have installed WDK.