try uninstalling Google Drive and see if the error resolves, and then reinstall Google Drive.
Or open the C:\Program Files (x86)\Google\Drive folder and rename the googledrivesync64.dll to googledrivesync64.old
you might like to see this link http://answers.microsoft.com/en-us/windows/forum/windows_8-performance/explorerexe-restarts-when-moving-copying-or/3ba212a7-853b-4a7b-82aa-ae29512d6a69