How to use a laptop as a second monitor

Add a second monitor to your computer

Use a second laptop as a second HDMI screen monitor for your primary laptop (Windows or Mac) | Think Outside The Slide

3 ways to connect an external monitor to a laptop with Windows 10

How to Set Up Dual Monitors in Windows 11

Simple Ways to Set Up Dual Monitors on Your Computer

How to Set up Dual Monitors or Multiple Monitors in Windows