In the User Accounts window, select your account, then uncheck the box: "Users must enter a username and password to use this computer".
Anyone with physical access to your computer can log in. how-to-automatically-login-in-windows-10-few-simple-methods
Microsoft provides a free, lightweight utility called Autologon that configures the login mechanism without requiring complex manual editing. In the User Accounts window, select your account,
Download Autologon from the Microsoft Sysinternals website. Run: Extract and run Autologon.exe . In the User Accounts window
If netplwiz fails, you can directly edit the Registry. Note that this stores your password in plain text.
Create a string value named DefaultPassword and set it to your password. Close and restart your computer. Key Considerations and Tips
If you use a Microsoft account, enter your full email address as the username.