Same here, it says "if you don't install the update before 24/04/15 it will install automatically" I don't want windows 10 for phone right now, but I don't know how to stop it!
I tried:
Uninstalling the windows insider app
Uninstalling the preview for developers app
Praying to god.
Praying to the devil too.
I have two days!
:devil:
Have a L920 and the update got downloaded over WiFi .. How can I stop its installation... Has completed the process of redeaing the phone for installation.. Any help appreciated.. Am on 8.1 update 2