Every so often an update comes out and it complains about the .Net version even though you are running a later version of the framework.
Googling does not provide a solution easily, but all you need to do is to run the installer using elevated privileges.
Error message : Mouse without Borders requires the .NET Framework 2.0 or 4.0
It's a Microsoft Garage work (side projects by MS employees) that solves my problem really well. Check it out...
Download site - http://www.microsoft.com/en-ca/downl....aspx?id=35460
Community site - https://getsatisfaction.com/mouse_without_borders