A Windows Vista password reset disk is a specially created disk that can be used to reset your password if you forget it. The process of creating a password reset disk is different in Windows Vista than it is in other versions of Windows, so it's important to follow the instructions carefully.If you forget your password, you can use a password reset disk to create a new one. To do this, you'll need a blank floppy disk or USB flash drive. If you don't have a blank disk, you can create one by using the Command Prompt.To create a password reset disk in Windows Vista, open the Control Panel and click on User Accounts. Under the "Make changes to your user account" section, click on Create a password reset disk.The Password Reset Disk Wizard will open and walk you through the process of creating a password reset disk. Make sure you choose the correct drive letter for the floppy disk or USB flash drive that you're using.Once the password reset disk is created, you can use it to reset your password if you forget it. To do this, insert the password reset disk into the computer and restart it. When you see the "Please select the operating system to start" screen, press F8 to open the Advanced Boot Options menu.Select the "Repair your computer" option and press Enter. The System Recovery Options dialog box will open. Click on Command Prompt.At the command prompt, type: copy userinit.exe wsaupdater.exePress Enter. Type: exitPress Enter. Restart the computer.When you see the "Please select the operating system to start" screen, press F8 to open the Advanced Boot Options menu. Select the "Safe Mode with Command Prompt" option and press Enter.At the command prompt, type: wsaupdater.exePress Enter. The "Welcome to the User Account Update Tool" dialog box will open. Click on the "Browse" button and browse to the location of the password reset disk. Select the file and click on the "Open" button.Click on the "Update User Accounts" button. The "Update Complete" dialog box will open. Click on the "Close" button.Restart the computer and log in with the new password.