S mode is a special version of Windows 10 or 11 that is designed to provide users with a faster, more secure, and reliable experience on their devices. It is a security feature that allows only apps from the Microsoft Store and requires Microsoft Edge for safe browsing. S mode is ideal for students, teachers, and large enterprises with many users and devices, as it provides additional security against potential threats. However, S mode has some limitations, such as the inability to install apps from outside the Microsoft Store, and the loss of access to command line prompts and Windows registry files. Switching out of S mode is one-way, and if you make the switch, you wont be able to go back to S mode. To switch out of S mode, you need to go to the Microsoft Store and select "Switch out of S mode".