Welcome to Justanswer.com, my name is ***** ***** I will do my best to assist you.
The password ***** need, what specifically is it for. Your windows 8 or 10 computer, your mac to sign in, or is it for your facebook account, or an g mail , aol , yahoo or some other email account?
Also, what type of device are you using to try and sign in where your password ***** working?
To get started, I need to know what type of computer you are using, a Windows XP, Vista, Windows 7, Windows 8, Windows 10 or a Mac.
If its a Mac, please check the OSX version as follows, Click the apple sign at the top left of your screen, then click about this mac. And then where it says version, send that to me as a reply.