Forgetting your Windows 7 password can be a frustrating experience, but fear not, there are ways to regain access to your computer. One of the first things you can try is using a password reset disk if you have one created beforehand. Otherwise, you can consider using built-in administrator account, password recovery tools like Ophcrack or iSeePassword, or even resetting your password using safe mode or installation disc.

It's important to note that some methods may require a certain level of technical expertise, so proceed with caution. Additionally, it's always a good idea to create a password reset disk or regularly update your security information to avoid such situations in the future.