Porting a Microsoft Silverlight app for Windows Phone to a Windows Store app built for Windows using C++, C#, or Visual Basic is relatively easy to do.
The enhanced Mitigation Experience Toolkit (EMET) is designed to help prevent hackers from gaining access to your system.
Microsoft regulates the appearance of the Windows key logo picture with a specially crafted license for keyboard manufacturers ("Microsoft Windows Logo Key Logo License Agreement for Keyboard Manufacturers").