This video will show you how to remove the lock screen on Window 10
1. Press the Windows Key + R to bring up the run menu and type in gpedit.msc.
2. Navigate through the menus as follows Computer Configuration/ Administrative Templates/ Control Panel/ Personalisation
3. Now enter the option saying Do not display the lock screen and click enable apply then OK.
I am not responsible for anything that happens on your machine and these tutorials are to be used at your own risk. If in doubt contact an IT professional.
If you were looking to remove the password screen this tutorial will help: https://www.instructables.com/id/How-to-Disable-Password-on-Login-for-Windows-10/