以前作启动盘时不管用哪个nk.bin都不能用.怀疑过所用ＰＢ版本问题．现在看来是荒谬的．
我新建的platform每次点击开始build and sysgen时,总会出现一个对话框提示:The Microsoft EULA permits building private code for debugging purposes only. Before releasing the product, the platform must be rebuilt with the libraries that Microsoft provides. Because the build process overwrites the libraries, be sure to back up the libraries before continuing the build process．这个提示其实是因为我重新编译了微软源代码，所以系统提示要备份．根本和版本没有关系．
如果没有修改源代码或者是改动配置文件，在编译菜单中只需要选择sysgen就可以了，速度也快了将近一倍． 如果改动了Catalog或者是配置文件,要选中clean before building项. 如果修改了配置文件或者是public下的代码,则要选择build and sysgen.