Assuming that you have forgotten your Windows 8 password for your local account or Windows Live ID and want to know how to unlock it, there are a few methods that you can try. One is to use a password reset disk if you've created one previously. If you can't remember your password but have access to another account on the same computer with administrator privileges, you can also change your password from the command prompt.If you don't have a password reset disk or another account on the computer, you'll need to use a third-party tool to reset your password. Kon-Boot is one of the best tools for this purpose as it doesn't require you to reinstall Windows or mess with any of your files.Once you've downloaded and installed Kon-Boot, simply insert the Kon-Boot USB drive into your computer and restart. Kon-Boot will bypass the Windows 8 login screen and allow you to access your account without a password. You can then change your password from the Control Panel.If you're still having trouble unlocking your Windows 8 password, you can always contact Microsoft support for help.