A password reset disk is a physical disk or USB flash drive that you can create and use to reset your Windows 8 password if you forget it. To create a password reset disk in Windows 8, you'll need a blank USB flash drive with at least 256 MB of free space.If you don't have a blank USB flash drive handy, you can also create a password reset disk on a CD or DVD. To do so, you'll need a blank CD or DVD and a CD or DVD burner.Once you have your blank media, insert it into your computer and open the User Accounts control panel. Click the "Create a password reset disk" link on the left side of the window.The Password Reset Disk Wizard will launch. Click "Next" to continue.The wizard will ask you to select the drive you want to use to create the password reset disk. Select your USB flash drive or CD/DVD drive from the drop-down menu and click "Next."If you're using a USB flash drive, the wizard will now format the drive. Once the format is complete, click "Next" to continue.The wizard will now ask you to enter your current password. Enter your password and click "Next."The wizard will now create the password reset disk. This process may take a few minutes, so be patient.Once the password reset disk has been created, click "Next."The wizard will now ask you to store the password reset disk in a safe location. Make sure to store it in a safe place, as anyone who has access to the disk will be able to reset your Windows 8 password.Click "Finish" to close the wizard and you're done!If you ever forget your Windows 8 password, you can use the password reset disk to reset it. To use the password reset disk, insert it into your computer and boot up.When you see the login screen, click the "Reset password" link.Enter the password reset disk when prompted and follow the instructions to reset your password.And that's all there is to creating a password reset disk in Windows 8!