I go with Winodws+R and there is a software called Everything http://everything2.com/ http://everything2.com/. Windows + Space is for switching input language

I go with Winodws+R and there is a software called Everything http://everything2.com/ http://everything2.com/. Windows + Space is for switching input language or keyboard layout. But other alternatives are win+Q or win+S. It just works fine.