where can i learn complete microsoft visual c# freely?

Answer 1

From Microsoft...
http://msdn.microsoft.com/vstudio/express/visualcsharp/learning/default.aspx
http://msdn.microsoft.com/vcsharp/
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cscon/html/vborivisualccodeexampletopics.asp

Answer 2

Go to http://www.codeproject.com/csharp/
You will find many useful information there.