Hi jon40000,
I apologize for the inconvenience. As you have mentioned you are asked t o uninstall Windows Live Mail but you can't due to the possibility that emails may be deleted. I suggest that before you perform a clean installation you back up your files first to make sure that it will not be affected. To do this follow the steps given on this
link.
Once done, you may now perform a clean installation of Windows Essentials on your computer. Follow the steps given
here.
Hope this helps. Let us know how things turn out.
Thank you.