Battle Cry. (2014) Warriors is a song recorded by American alternative rock band Imagine Dragons for the music video League of Legends 2014 World Championship and was the official theme song for the 2015 FIFA Women's World Cup.
Task Host Window is an intelligent windows program which pops up when you attempt to Shut Down windows. The reason why it pops up is due to the running processes and programs in the background; when you initiate shutdown or reboot, task host interrupts the process to check if all running programs were closed to avoid data loss, the pop up would also show you which programs were running.
Some processes, like firefox.exe or explorer.exe can be identified immediately by their name while others, like taskhost.exe or dwm.exe, require research to find out what the process is all about. Taskhost.exe is a generic host process for Windows 7 32-bit services.