Just don't try installing 3001652
That's the patch for VSTO, and it hangs WU. Lots of reports of this today so it's another MS Patch Tuesday screwup. What's funny about this one is, I installed it first on a test machine using Windows Update and when the VSTO update ran it prompted me to accept the EULA, but when I ran it on machines served by WSUS it just hangs, preventing all other updates from running, and short of a reboot you can't kill it. Wanna bet it's waiting for an answer to the EULA without actually displaying it??