The Search button doesn't work

[Tayhuwaniwanga]

Hi,

 

I upgraded my phone from 8.1 to 10 and the search button was opening the Search app which doesn't contain Cortana (because of country). I went for a hard reset and the search button won't open the Search app anymore, it opens the Edge browser with Yandex.com.

You must have heard about Microsoft and Yandex cooperation.

Any fix for this?

Sorry for English, thank you.