Disabling System Updates

Hello.
I know there have been many threads started about disabling system updates and I've read through many of them but so far I have not found one that actually describes how to disable system updates and remove the update notification.

I've got a Razr Maxx HD with 4.1.2 on it and I REALLY don't want my phone to update to 4.4.2 since the new update removes the WiFi hotspot ability from the phone.

Would someone please point me in the direction of a thread that tells me how to...

Disabling System Updates

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