Creating a Password Reset Disk
Windows Vista has the option to create a recovery disc or key that allows you to get into an otherwise locked operating system. In Windows Vista follow these steps to create your recovery disc or key.
Click on Start (In Vista, click the round Windows Logo)
Select Control Panel
In the Control Panel, select User Accounts and Family Safety
Select User Accounts
At the top of the menu on the left side, select Create a Password Reset Disk
Once you select Create a Password Reset Disk, you will be prompted for a USB Flashdrive (thumbdrive) or a floppy disk if your system has one.
The password reset disk creation wizard will appear. Follow the wizard, selecting the removable flashdrive or floppy as your source. You will be asked for the current password. Select the next screens in the wizard to create the file on your drive. Once the process is complete, you will see a file (userkey.psw) that is encrypted.
(Note: No matter how many times you reset your password, you will only need this one disk or USB drive. You MUST protect this disk or drive.)