What is smss exe?

SMSS.exe is an important system file that runs on Windows operating systems. SMSS stands for Session Manager Subsystem, and its primary function is to manage user sessions and initiate the system startup process.

When a user logs in to their computer, SMSS.exe initializes the user session and launches various system processes, such as the Winlogon.exe process that handles user authentication and logon.

SMSS.exe also manages system shutdowns, ensuring that all running applications are closed correctly and that the system is shut down in a safe way to avoid data loss or corruption.

Overall, SMSS.exe is a critical component of the Windows operating system, and any issues with it can lead to system instability and errors. It is important to take care when dealing with this file to avoid corrupting it or causing system damage.