KB3119142 (Update for Microsoft Visual C++ 2012 Update 4 Redistributable Package) keeps downloading in the Windows 10 Update app. Windows apparently attempts to reinstall it each time, and each time it installs successfully according to the log screen.
Right click the Windows Start Icon at the lower left of your screen in the taskbar and click on Programs and Features at the top of the list there. If you are familiar with Control Panel, you can also go there and click on Programs and Features.
Right click on the MS C++ 2012 listing there. Click on Change and then Repair. Restart your computer. I had the same problem since installing 11099 and found this answer on Win 10 Insider Forum and it worked for me.
After this it will successfully install the update and reports your machine as up to date