I get the error code. There's a link too that redirects to a 404 page. The official Microsoft page suggested that I use the standalone installer but it too did not work.In my Update History, when I double-click on a Failed entry, a dialog box pops up which contains some blah, then "Installation status: Failed", then the next line is "Error details: Code xxxx...", then other blah, but an error code is there for all of them.
So when you double-click on your entry, it doesn't have that "Error details" line? Also, have you checked Event Viewer?
I just reinstalled Windows and now it's actually letting me install the March firmware update, wherein previously I don't believe this even showed up in Windows Update. I'll install it and post back.