Generally windows ask for the old password to set a new password for user. But there are some hidden methods in windows to change the password even if you don’t have access to old password.Yes, you can change windows user password without having access to old password. You just need a already logged in system to change password. You can change your siblings or friend’s system password for fun. But keep In mind that it is illegal. so take it as a trick for fun and don’t misuse it.
Basically windows have feature of security by adding user password.But if you are not satisfied with single password on startup you can set a addition password by syskey utility. Syskey utility is a inbuilt feature of windows of securing data by using 128 bit encryption. You can add syskey password on system which is asked on windows startup. without this password the window will not boot.And no one can’t reach to the user password without syskey password. You system will firstly ask for syskey password and then the user password.In this way your system will have two layer security.To enable syskey on your system follow these steps:-