PSA: Disable Preview for Developers to get the latest updates!

I have recently noticed that my dad's 830 didn't have Update 2 although it should be available already, and my mom's 625 didn't have the update that fixes the random reboots. The reason for it was that they both had PfD enabled which doesn't have the latest updates available. If you don't have the latest updates yet - as seen [here](https://www.microsoft.com/en/mobile/support/software-update/wp8-software-update) - you should disable (not uninstall but disable) PfD (at least until W10M is available there).