By default, windows will login into default user. The default user is user which you have created first at time of setting up your Windows at first login.
How to disable auto login
- Press Windows key + R. This will open run window. Type “netplwiz”. This will open user account Windows for you.
- Select option by checking the “Users must enter a username and password to use this computer” and then click on Apply.
- When done. Restart your computer and on next login it will prompt you to enter password at login screen.
Although this is not necessary to disable auto login but in case you use your system in public environment, your data is more secure, and it cannot be accessed just by restarting windows.