W8 upgrade fromW7 trouble

My W8 upgrade from W7 perhaps is incorrect installing?! “An error has occured. The file could not be written successfully.” when W8 starting , ‘/Library/Preferences/WaveLab 8/Cache/Window Config’" when W8 closed.More troubles,only Force Quit is shutdown application.The W8 is not recognized plugins.But early installed W7 is working?!
What is been wrong?

Your message is not very clear. The windows config folder can be removed if there is a problem. It will be recreated automatically.

Full uninstall eLicenser soft and Wavelab8,and fresh install to help.Now it,s all right!