This is my first posting written from a linux desktop!
Windows 7 began to behave annoyingly, so I decided to install Ubuntu 14.04 LTS on my laptop.
Installing Ubuntu along Windows 7 did not work out (I suppose, Microsoft has prohibited that intentionally), so I installed Ubuntu „from the scratch“.
If I still will need Windows (e.g. to run some X3D Players), I will try it with „Windows over VMWare over Ubuntu“ or some similar approach.
Have a great new year