My concept for Windows and Microsoft Logo. I may use the logos later so all rights reserved to the designs (no derivatives, modifications or commercial use. You can contact me if you want to buy the logo). Hope you like it
Edit: Adding explanation
The diagonal metro square is contained by a W-like structure, which stands for metro within windows (since windows is no longer what it used to be) THe logo still retains the 4 colors, they're only arranged differently. (a bit like a transparent open box with no top
The MSFT logo is well, abstract and represents what I see the company as it is today, modern, sharp and ever-evolving unlike apple which sticks to the grays and the faux-styles. Tried to get that feeling across through the blue symbol.