@tsarstepan,
Yandex had signed a strategic cooperation agreement with Microsoft, under which users in Belarus, Kazakhstan, Russia, Turkey and Ukraine (and a couple more countries) will be offered Yandex when upgrading to Windows 10. You can get it on some new computers/laptops/notebooks here in Germany as well. (It's very popular here, btw, especially, because they have [bought it a few years ago] a software, which transform automatically in Cyrillic letters.])