C # seems to be installed:

However, there is no way to create a C # project:

Is there a way to enable C # projects without reinstalling VS?
Note: this question is not entirely appropriate:
How can I add C # language support for the Visual Studio 2010 shell?
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I followed the instructions (listed in the comments). Directories *TemplatesCachehave been recreated (with one name CSharpin ItemTemplatesCache), however they are not included in the new project list (when VS is restarted).
** change 1 **
If relevant, I have a version of Visual Studio 2010 Shell:

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