Forgetting your Windows Vista laptop password can be a frustrating experience, leaving you locked out of your own device. However, there are a few methods you can try to regain access to your laptop without the password. Here are the steps you can take:

1. Use Password Reset Disk: If you previously created a password reset disk, you can use it to reset your password and gain access to your laptop.
2. Safe Mode: Boot your laptop in Safe Mode and try accessing the default Administrator account, which may not be password-protected.
3. Third-Party Tools: There are various third-party tools such as Ophcrack, PCUnlocker, and Offline NT Password & Registry Editor that can help you reset your password.

It's important to note that some methods may result in data loss or other issues, so proceed with caution and ensure you have a backup of your important files. Additionally, consider setting up a new password or using a password manager to avoid future password-related troubles.