Visual Studio 2012 with Small(non-capital) Menu

Change registry
HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0\General\SuppressUppercaseConversion

OR

Run below line at powershell
Set-ItemProperty -Path HKCU:\Software\Microsoft\VisualStudio\11.0\General -Name SuppressUppercaseConversion -Type DWord -Value 1