Can you not just roll back to the previous driver? Why the update anyway? Were you trying to fix a problem? If your machine was working o.k. before the update I would suggest a roll back. Found out the hard way a long time ago, "If it ain't broke ...... don't fix it".
G74Sx BBK-8 Crucial M4 128GB.SSD/W.D.500Gb.@7200 HHD 16GB. RAM Stock otherwise.
An End,even with Terror is better than Terror without End. F.Nietzsche