There are lots of problems for Windows 10 .the more concern is how to update Windows 10 without any risk , i can not stand that the system cannot be accessed properly after the Windows upgrade.The login password has not changed and i didn't forgot login password , but Windows 10 was locked ,

https://www.recoverywindowspassword.com/reset-forgotten-windows-10-login-password.html

This method is recommended by my colleague , but i don't know if it works for me , any suggestions .....