You can stop the annoying pop-ups by following the procedure below. I have used it and I haven’t been bothered in the past two months. The offending update is KB3035583 and MS repeatedly re-inserts this update every time it offers you other critical updates.
You can refer to the below mentioned steps to hide an update.
Press Window key + X.
Select Control Panel from the list.
Under view by option select large icons.
And then click either Windows Update or Microsoft Update.
Now click on important updates available (recommended).
Click to clear the check box that is next to the KB3035583 update.
Expand the KB3035583 update that you want to hide, and then click the “Don’t show this update again” check box or in my case with Windows 8.1, “hide” .
Click Review and install updates.
I repeat, after performing the above steps, I have not been bothered by the offending pop-up.
It is much more complicated than that. 30 seconds with google shows this to be true.
Does anyone really think that MS would allow the simple case of not installing ONE KB to avoid nag and upgrade Hell?