After installing Windows 8.1 Pro Preview over Windows 8,(1) Silverlight is no longer recognized on a webpage, which was doing it earlier on Windows 8(2) USB Internet Stopped Workingand giving message "Unable to create a Phone-Book entry" or "... stopped working"(3)A Wscriptprogramrunningwell on Windows 8has started throwing'unspecified error', probably onbreaking of a line and introduction of a new line with"_"character.
These may be due to bugs, which need to be rectified.