If you've forgotten your WordPress admin password, don't fret!
Use the WordPress "Forgot Password" link
This method may be the simplest, assuming you have access to the email address you used for the account. Complete the following steps and you should be all set to login once again:
- Head to http://yourdomain.com/wp-admin (or whatever your admin URL is)
- Click the small "Lost your Password?" link below the login box
- Provide the email address you used for the account and press Get New Password
- Check your email for the new password, then proceed to login as normal