I am currently trying to install the XNA Game Studio for Visual Studio Express 2013. And I accidentally ran the .vsix program BEFORE actually installing the XNA framework.
After installing it and re-running the .vsix, I get a message error saying that the extension has already been installed. Which is not false.
I have tried a lot of things to "delete" the empty extension : going in %LocalAppData%\Microsoft\VisualStudio and trying to find the extension, but finding myself with nothing, for example.
I would like to know how I can properly uninstall and reinstall the framework.
In the menu, go to:
A new window will pop up, then in the panel to the left, click the arrow besides Installed to bring it down and select the menu item All.
All you have to do now is to navigate in the middle panel to your installed exstension, select it and click Uninstall.