Situation: When installing Windows updates, you have a problem to install KB 890830 and it blocks other update download,
Troubleshooting: 1. Hind KB 890830 from the Windows update or uninstall it.
2. Just delete the mrt file in Windows\system32\mrt. The launch Windows Update and hide the April 2016 MRT update. Afterward, restart Windows Update search 3 times again.
3. Try to download the Windows updates manually.
4. If you can’t downlaod the Windows Updates manually, check the firewall. This post may help:
Can’t download Windows Updates because of firewall
5. Download and install Windows Update Assistant from Microsoft. This step by step video may help:
