recently i have installed MS Visual Studio 2010 Professional as an upgrade from 2005. I wanted to use the english version but after installation it\'s german(2005 was englis
You could try and do the following
Try to remove the VS2010 installation and the .NET framework installation. Then download the english version here. Install the English .NET framework and then install VS2010.
If that doesn't work then maybe the two blogposts below will help. There are tricks with startup parameters to be able to use a certain language.
Blog 1 about how to use the LCID parameter
Blog 2 with a list of available language codes
Two other interresting blog posts from the same writer can be found here and here.