I don't know when and how it happened, maybe when I installed VS 2010 side-by-side with VS 2008, but my VS 2010 default language was set to Visual Basic and I don't use "that thing" anymore. I ignored it for a while since I have been just converting from VS 2008 but it got annoying because every time I created a new project it was created with Visual Basic so I had to delete it and recreate it.

Finally I decided to change the setting but I was looking on the wrong place Tools -> Options. After a while I found this eggheadcafe posting and as it said it is Tools -> Import and Export Settings.:

Save your current settings in case you change your mind later: (not me )

Then select Visual C# Development Settings and click Finish: