This might not be the effect you want to get. However, there is an annoying problem: when you close your laptop lid to save some space, the external monitor will also go to sleep mode. This can establish an effective workstation based on their habits. Some users prefer to use a laptop with an external monitor or some other peripheral accessories. Can You Close Laptop Lid and Use External Monitor? In this post, MiniTool Software shows you how to close the laptop lid and use the external monitor by changing some settings under Power Options. If you use a laptop with an external monitor on Windows 10/11, you may want to close the laptop lid and still use the external monitor.