YSK: Win10 users can press the Windows key and tab to open a new desktop instance. This is especially useful if you're a gamer and a game is crashing/stuck, but task manager won't open. Swap over to Desktop 2 and open it there, close your game and then switch back to instantly solve the problem.
from /r/YouShouldKnow
YSK：Win10用户可以按Windows键和标签打开一个新的桌面实例。如果你是个游戏玩家，游戏崩溃/卡住了，但任务管理器打不开，这就特别有用。换到桌面2并在那里打开它，关闭你的游戏，然后切换回来，以立即解决问题。