Hello aspirant,

To find your username and reset your password:

1. Go to the Forgot Password or Username page.

2. Enter your account email address, but leave the username box blank!

3. Click Continue.

4. Check your email inbox—you'll get an email with a list of any usernames associated with your account email address.

If you could tell me for which application you have forgotten the password and username , then it would me more help full  and you can get more clear information .

Hope this helps !