After you open the Windows 8.1 computer, select your account and type the password in the provided field (
). You don't need to enter the username anywhere because the computer memorizes it automatically, when you create a new user account. If you want to change the password, open PC Settings, click the Accounts menu and select Sign-in options. Click Change, type your current password and then the new one. If you want to create a new user account, follow the instructions provided by Microsoft Support team.