What about Errors and Warnings in the System and Application Event Logs? Launch Event Viewer, expand "Windows Logs", and select "System". Then search the log for any Errors or Warnings. Report them by listing a) EventID, b) Source, and c) exact text of Description (displayed when you select the individual event from the list).
If I was experiencing this issue, I would uninstall the NVIDIA driver from Control Panel, reboot into Safe Mode and use Driver Sweeper to uninstall any NVIDIA remnants (if they exist). I might also use CCleaner to clean up the registry. Then I would boot into Safe Mode and install the NVIDIA 285.62 WHQL driver and see if I could reproduce the issue.
G74SX-A1 - stock hardware - BIOS 202 - 2nd Monitor VISIO VF551XVT