When you first set up a new PC, you create a user account, and that account is set, by default, to login automatically at startup. This isn't a problem when you're at home, but if you use a laptop, and travel, this is a serious risk.
This automatic login means that anyone who finds your computer only needs to start it up to have access to your files.
How To Disable:
- Press Win+R, enter "netplwiz", which will open the "User Accounts" window.
- Check the “Users must enter a username and password to use this computer” option and click Apply.
- You’re done. Restart your computer and the system will prompt you to enter your password at the login screen.
Three easy steps like that makes your computer, and data, more secure!