You can down load the last drivers that Asus put up for your notebook here Asus Support Downloads however Asus does not support windows 10 on these older notebooks. You can read around this forum others have found work arounds and driver that work. You might want to roll back to Win 7 for awhile until you sort out all the drivers you'll need to run windows 10.

I'm guessing your model is a G74, if so it seems there are a thread or two where they got most things working on that model you'll have to Search or read back through this forum.