WL Mail won't load.  The first screen comes up and says 'loading' but it doesn't.  At the same time, Internet Explorer started to malfunction.  It loads a totally blank page.  Typing in a web address has no effect, and Internet Options are greyed out.

These problems occurred when I downloaded a trial version of Office 2013 from the Microsoft site, and tried to install it.  I chose the install option to keep rather than replace my current Office 2007.  The install failed, saying I already had some Office 2013 components installed.  I have never installed 2013.  I checked for residue from the Office 2013 install but found nothing.

Anyway, the install failed and, immediately afterwards, I started having the above problems.

Internet Explorer works for the Guest account.  I hadn't made WL Mail available to that account and am reluctant to do that now in case I mess something up.

I have Windows 8.1, Windows Live Mail 2012, Internet Explorer 11.

Are WL Mail and IE connected in some way.  I'm wondering if I have one problem or two, and I'd be relieved if someone can give me a solution.