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.
The Windows Shell Experience Host process may use quite a bit of memory or CPU when it is running. To find out whether this is the case on your machine running Windows 10, use the keyboard shortcut Ctrl-Shift-Esc to open the Task Manager. Click the more details link at the bottom left of it and locate the Windows Shell Experience Host process in the listing. You may click on name to sort the processes alphabetically which may make it easier to find it in the listing.