If you don't want to risk any issues:
Originally Posted by gamerdad09
Anyways I found out how to stop the update notification screen.
Application Manager > All Applications > Software Update
Clear Cache, Force Stop, and Set it to disabled.
I had 2 Software Update apps, but could only disable one. Now I'm not getting the KK system update notification anymore. Other application updates are still working fine.
Set to disabled and your tablet won't even notify you of any system updates.
I accidentally downloaded the KK update and my tablet was notifying me to update every time I went to use it until I disabled the system updates.