Microsoft has released three cumulative updates for Windows 10 -KB3192440 (for RTM), KB3192441 (for 1511), KB3194798 (for 1607) – and are available to download via Windows Update. KB3194798 update, which includes improvements and fixes in the latest version of Windows 10, has download issues as it gets stuck at some point, patience is the key.
Restarting the computer when that was happened and rechecking for updates, installed the update for us more quickly. Why don’t you try that if you’re experiencing the same with the update.
KB3194798 download links
You can also download and install this update using the links mentioned below without relying on Windows Update to do that for you.