I'm sorry about the issue. What's the model of your Lenovo tablet?
Does it have Windows XP, Vista, or 7 or 8 or 10, etc.?
Does it show a name or username at the password ***** login screen?
Does it show an email address at the password ***** login screen?
Is it a new tablet?
Is it okay to reset the tablet fresh, so you can re-set it up fresh, like brand-new, with a new password ***** want?
Please reply at the box below. Thank you.