You have an instance of this driver running on your system
GVTDrv64.sys 9/5/2006 Gigabyte Easy Tune 6 driver Link Removed - Invalid URL
First of all it is very old, too old. And second there are known issues with that particular product and Windows 7. So....
If you have ever used it to perform any Over Clocking at all, please use it one more time to return anything you might have done to default / normal settings and then uninstall it completely from your system. Then do a search for GVTDrv64.sys and confirm it is no longer present and able to load. Should be here C:\Windows\System32\Drivers but may be in other places as well. If found to be present after uninstalling the software please rename it to GVTDrv64.OLD to break it...