I updated my Windows 10 x64 N machine to 1703. As usual, I tracked down the appropriate media feature pack to install.
It installed and then asked me to reboot. I did so, but no media features appeared. I ran the above installer again, and it gave me this message:
At first I thought it was telling me it was already installed. But upon closer inspection, KB3133719 is not the update I installed -- it's the feature pack for the previous version of Windows 10, 1607.
I'm kind of stuck here. There doesn't seem to be a way of uninstalling feature packs, short of reinstalling the OS (which I don't have time to do atm), but I can't get the feature pack installed (for those that don't know, this means that videos on the internet won't play, and all sorts of games and apps will work incorrectly or not at all -- it's not just windows media player).