One of our Human pit falls, forgetting things.
Sadly if it`s a password you put in to protect all of your data and files of your computer, or laptop if it goes Walkie s due to some light fingered larry, or thief. We cannot help you at all.
Its one of the sort of no no questions to reveal or answer a way to do it.
Forgive me there, but do understand.
Because simply we do not know if you are the person for example who may of stole it.
And no way to verify you are the true owner.
Remembering that the password is there for such a situation.
I`m afraid it`s down to you to find a solution or answer.
As many will tell you here on Toms forums.
Telling someone how to navigate security, and passwords is a no no.