Nova Launcher -Google problem I have  a problem with Nova Launcher. When I go to Google and press &quot;home&quot; , it always asks me to choose between launchers. This  happens only when I use Google, it's really annoying.
Model: Alcatel one touch pop c2
OS: Andorid 4.2.2 jellybean
Nova Launcher version: Nova Launcher Prime 4.2.2
Root access: yes
Launchers: Launcher, Nova Launcher
Here is video:
https://www.youtube.com/watch?v=ICJSZB0SEso
Screenshot:
Fixed, thanks to XDA thread-Default launcher resets every time i use the google now pointed out beeshyams.

As recommended in that thread, I installed an app called Launcher Switcher and I found one app acting like launcher (in addition to Nova and default launcher), in my case that was "MMITest", I just removed that app with System app remover (ROOT)