Lost Password

I lost my password, without having to fomat how can I retrieve my password? 

I have the  WD My Passport external drive.  The drive is full and I dont want to reformat if possible.  There are a few sites online for a fee Say they can retrieve.  Please Help!

When I spoke to customer support at WD they said to reformat the disc :frowning:

What software did you use for security?

There are no options to retrieve the password if you used Smartware. 

Try with the passwords that you regularly use or see if there is any password hint.