Download Windows Update PowerShell Module.

https://gallery.technet.microsoft.com/scriptcenter/2d191bcd-3308-4edd-9de2-88dff796b0bc/

extract the contents of the zip file to:

C:\Windows\System32\WindowsPowerShell\v1.0\Modules\
Run Windows Powershell ISE as Administrator

Execute these commands in Powershell ISE:

Set-ExecutionPolicy RemoteSigned

Confirm the change by pressing Y 

Import-Module PSWindowsUpdate
Get-Command –module PSWindowsUpdate
Get-WUInstall

important long loading time...

Comfirm with Y

Reboot
Turn on automatic updates